diff --git a/src/99-appendices/04-entity-table.md b/src/99-appendices/04-entity-table.md
index ced370f881..89ad46bfd1 100644
--- a/src/99-appendices/04-entity-table.md
+++ b/src/99-appendices/04-entity-table.md
@@ -7,17 +7,18 @@ precede the reconstruction entity. REQUIRED and OPTIONAL entities for a given
 file type are denoted. Entity formats indicate whether the value is alphanumeric
 (`<label>`) or numeric (`<index>`).
 
-| Entity                   | Format              | anat<br>(T1w T2w T1rho T1map T2map T2star FLAIR FLASH PD PDmap PDT2 inplaneT1 inplaneT2 angio) | anat<br>(defacemask) | func<br>(bold sbref events) | func<br>(physio stim) | dwi<br>(dwi bvec bval) | fmap<br>(phasediff phase1 phase2 magnitude1 magnitude2 magnitude fieldmap) | fmap<br>(epi) | beh<br>(events stim physio) | meg<br>(meg channels) | meg<br>(photo coordsystem headshape) |
-| :----------------------- | :------------------ | :--------------------------------------------------------------------------------------------- | :------------------- | :-------------------------- | :-------------------- | :--------------------- | :------------------------------------------------------------------------- | :------------ | :-------------------------- | :-------------------- | :----------------------------------- |
-| Subject                  | `sub-<label>`       | REQUIRED                                                                                       | REQUIRED             | REQUIRED                    | REQUIRED              | REQUIRED               | REQUIRED                                                                   | REQUIRED      | REQUIRED                    | REQUIRED              | REQUIRED                             |
-| Session                  | `ses-<label>`       | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    | OPTIONAL              | OPTIONAL               | OPTIONAL                                                                   | OPTIONAL      | OPTIONAL                    | OPTIONAL              | OPTIONAL                             |
-| Task                     | `task-<label>`      |                                                                                                |                      | REQUIRED                    | REQUIRED              |                        |                                                                            |               | REQUIRED                    | REQUIRED              | REQUIRED                             |
-| Acquisition              | `acq-<label>`       | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    | OPTIONAL              | OPTIONAL               | OPTIONAL                                                                   | OPTIONAL      |                             | OPTIONAL              | OPTIONAL                             |
-| Contrast Enhancing Agent | `ce-<label>`        | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    |                       |                        |                                                                            | OPTIONAL      |                             |                       |                                      |
-| Reconstruction           | `rec-<label>`       | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    | OPTIONAL              |                        |                                                                            |               |                             |                       |                                      |
-| Phase-Encoding Direction | `dir-<label>`       |                                                                                                |                      | OPTIONAL                    |                       | OPTIONAL               |                                                                            | REQUIRED      |                             |                       |                                      |
-| Run                      | `run-<index>`       |                                                                                                |                      | OPTIONAL                    | OPTIONAL              | OPTIONAL               | OPTIONAL                                                                   | OPTIONAL      |                             | OPTIONAL              | OPTIONAL                             |
-| Corresponding modality   | `mod-<label>`       |                                                                                                | OPTIONAL             |                             |                       |                        |                                                                            |               |                             |                       |                                      |
-| Echo                     | `echo-<index>`      |                                                                                                |                      | OPTIONAL                    |                       |                        |                                                                            |               |                             |                       |                                      |
-| Recording                | `recording-<label>` |                                                                                                |                      |                             | OPTIONAL              |                        |                                                                            |               |                             |                       |                                      |
-| Processed (on device)    | `proc-<label>`      |                                                                                                |                      |                             | OPTIONAL              |                        |                                                                            |               |                             | OPTIONAL              | OPTIONAL                             |
+| Entity                   | Format              | anat<br>(T1w T2w T1rho T1map T2map T2star FLAIR FLASH PD PDmap PDT2 inplaneT1 inplaneT2 angio) | anat<br>(defacemask) | func<br>(bold sbref events) | func<br>(physio stim) | dwi<br>(dwi bvec bval) | fmap<br>(phasediff phase1 phase2 magnitude1 magnitude2 magnitude fieldmap) | fmap<br>(epi) | beh<br>(events stim physio) | meg<br>  | eeg<br>  | ieeg<br> | channels<br>(meg/eeg/ieeg) | headshape<br> (meg) | photo<br>(meg/eeg/ieeg) | electrodes<br>(eeg/ieeg) | events<br>(meg/eeg/ieeg) |
+| :----------------------- | :------------------ | :--------------------------------------------------------------------------------------------- | :------------------- | :-------------------------- | :-------------------- | :--------------------- | :------------------------------------------------------------------------- | :------------ | :-------------------------- | :------- | :------- | :------- | :------------------------- | :------------------ | :---------------------- | :----------------------- | :----------------------- |
+| Subject                  | `sub-<label>`       | REQUIRED                                                                                       | REQUIRED             | REQUIRED                    | REQUIRED              | REQUIRED               | REQUIRED                                                                   | REQUIRED      | REQUIRED                    | REQUIRED | REQUIRED | REQUIRED | REQUIRED                   | REQUIRED            | REQUIRED                | REQUIRED                 | REQUIRED                 |
+| Session                  | `ses-<label>`       | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    | OPTIONAL              | OPTIONAL               | OPTIONAL                                                                   | OPTIONAL      | OPTIONAL                    | OPTIONAL | OPTIONAL | OPTIONAL | OPTIONAL                   | OPTIONAL            | OPTIONAL                | OPTIONAL                 | OPTIONAL                 |
+| Task                     | `task-<label>`      |                                                                                                |                      | REQUIRED                    | REQUIRED              |                        |                                                                            |               | REQUIRED                    | REQUIRED | REQUIRED | REQUIRED | REQUIRED                   |                     |                         | REQUIRED                 | REQUIRED                 |
+| Acquisition              | `acq-<label>`       | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    | OPTIONAL              | OPTIONAL               | OPTIONAL                                                                   | OPTIONAL      |                             | OPTIONAL | OPTIONAL | OPTIONAL |                            | OPTIONAL            | OPTIONAL                | OPTIONAL                 | OPTIONAL                 |
+| Contrast Enhancing Agent | `ce-<label>`        | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    |                       |                        |                                                                            | OPTIONAL      |                             |          |          |          |                            |                     |                         |                          |                          |
+| Reconstruction           | `rec-<label>`       | OPTIONAL                                                                                       | OPTIONAL             | OPTIONAL                    | OPTIONAL              |                        |                                                                            |               |                             |          |          |          |                            |                     |                         |                          |                          |
+| Phase-Encoding Direction | `dir-<label>`       |                                                                                                |                      | OPTIONAL                    |                       | OPTIONAL               |                                                                            | REQUIRED      |                             |          |          |          |                            |                     |                         |                          |                          |
+| Run                      | `run-<index>`       |                                                                                                |                      | OPTIONAL                    | OPTIONAL              | OPTIONAL               | OPTIONAL                                                                   | OPTIONAL      |                             | OPTIONAL | OPTIONAL | OPTIONAL | OPTIONAL                   |                     |                         |                          | OPTIONAL                 |
+| Corresponding modality   | `mod-<label>`       |                                                                                                | OPTIONAL             |                             |                       |                        |                                                                            |               |                             |          |          |          |                            |                     |                         |                          |                          |
+| Echo                     | `echo-<index>`      |                                                                                                |                      | OPTIONAL                    |                       |                        |                                                                            |               |                             |          |          |          |                            |                     |                         |                          |                          |
+| Recording                | `recording-<label>` |                                                                                                |                      |                             | OPTIONAL              |                        |                                                                            |               |                             |          |          |          |                            |                     |                         |                          |                          |
+| Processed (on device)    | `proc-<label>`      |                                                                                                |                      |                             | OPTIONAL              |                        |                                                                            |               |                             | OPTIONAL |          |          |                            |                     |                         |                          |                          |
+| Space                    | `space-<label>`     |                                                                                                |                      |                             |                       |                        |                                                                            |               |                             |          |          |          |                            | OPTIONAL            |                         | OPTIONAL                 |                          |