I just did some testing and here are the results I found:
The top item picking area does not send any info (this is all handled client side).
The cursor is never sent along (So we have no idea what you are currently holding)
There is inconsistent behavior between creative windows. (The inventory one seems flipped, perhaps it is actually telling us the cursor instead of the clicked, not really sure what it is doing?)
Until any of this is fixed, I can't do anything in creative.
I just did some testing and here are the results I found: The top item picking area does not send any info (this is all handled client side). The cursor is never sent along (So we have no idea what you are currently holding) There is inconsistent behavior between creative windows. (The inventory one seems flipped, perhaps it is actually telling us the cursor instead of the clicked, not really sure what it is doing?)
Until any of this is fixed, I can't do anything in creative.