Adding a 'Pole' node in Edit Response should display Value: Not Allowed

[metempleton]

When using Edit Response to add a Pole to PoleZero, the right panel displays
Name: 'Pole' Value: N/A
but should display
Name: 'Pole' Value: Not Allowed

Value: N/A allows the user to enter a numerical Value, which is inconsistent with the stationXML schema. On the other hand,
adding a 'Zero' displays the desired behavior.

[metempleton]

I just noticed that 'Pole' Value: N/A upon adding only persists until the GUI refreshes. If you add a new element (Real), 'Pole' updates as Not Allowed.