you're not going crazy :), changed to 0.4 today, it has tiny non-line-changing unrelated bugfix, so still strange that the lines were different
So that line just adds Shift-k hotkey, not sure why it fails for you, but works for me
Maybe it needs +
Check this version (also has debug print to print which keys are added)
backup.TabUndo_up.opusscriptinstall (15.3 KB)
or you can delete the enumeration and try to manually add just this one hotkey and change it to see why it fails
I've had issues with addhotkey Option to AddHotkey to dialogs as physical keys for international layouts, but this doesn't seem to be relevant in your case as you have k