Highlight equivalent blocks in query

[jameskoster]

When working with blocks inside a query, it is possible to pseudo-select multiple blocks of the same type at once, and see changes reflected in multiple locations. This is best described with a short video:

multi-block.mp4

However, before the interaction occurs (moving the block in the video) there is no indication that multiple blocks will be affected.

Two areas we can improve the clarity here:

1. When hovering the Post Title block in List View, all instances in the query could be highlighted on the canvas rather than just one
2. When the Post Title block is selected, all instances in the query could be outlined on the canvas

I propose that highlighting the pseudo-selected blocks in some way will make these interactions feel a little less jarring.

[paaljoachim]

Hey James. That is a very good idea! Highlighting for instance other Post title blocks in the layout would enforce the connection they have. Making it easier for the user to see the connection. As these are linked to each other because of the Query block. Changing one would automatically change the others.
Thanks for creating the issue!

[AshiqKiron]

I second @paaljoachim's comment. Your exploration would help users understand what's happening in real time.

[jameskoster]

I'm not sure this actually needs design. All block instances can just have the is-selected state applied. The Toolbar being visible above the true-selected block is hopefully enough to denote focus.