Another problem I see regarding editing lines:
Sometimes in jqt a have a bunch of results on my screen that I want to look. I
then proceed to do some incorrect calculation and I want to undo it (as in
erase the result).
The current way I do it is usig Ctrl-Z, but there are 2 problems:
1) It takes 3 Ctrl-Z presses to go back to the line I was editing
2) In J8 (it did't happen in J6) the cursor jumps to (0,0) after the first
Ctrl-Z, even if I am many pages down, returning after the third Ctrl-Z and
erasing the line I was editing.
It would be nice to have a easy way to Undo you current calculation.
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