Yes, I missed a bit.
Edit/Paste Pad and Edit/Swap Pads can now be undone.
I have also "fixed it" so that the undo/redo history gets
cleared when things that can't be undone change things.
Such as File/New or File/Open.
At the moment, this also includes
Edit/Paste Kit and Edit/Swap Kits.
That may change.
Yes, the global tab now really does have tool tips.
Probably undo/redo for kit.