The other thing I'd like is to highlight the rows in the find results according to whether that location Reads, Writes, or both to the searched element, and also be able to sort the results on those categories.
The current results show the instruction, but for example if it's a MATH or other output box, you have to review it to see if the searched element is an input or output, or both, relative to that instruction.
Oh, and kudos for thinking of a rescan UI that doesn't waste pixels!