I've previously used an editor called Prism which had an invaluable feature no other editors seem to have.
If a word is highlighted you could so a search for its usage in the active file, with the results shown in a window which wasn't constrained to the normal editor window.
The results listed provide hotlinks to the appropriate lines in the active window (as can be done with compile errors from the TextPad Command Results).
By positioning the 'Usage' results window to the side of the screen you could do very fast searches for assignments to a particular signal in the current window without having to swap back and forward between different active windows.
This would probably be do-able in TextPad if the Command Results window could be un-docked and moved outside the normal TextPad window.
It's hard to describe how useful this is without a demonstration, but I would _really_ like to have it in, so please all use your imaginations
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