In theory you can setup keymaps for these in Blender’s keymap editor. But the edit mesh alignment tool is really made to be used from the pie menu. The tool will check if
CTRL are pressed, and from that determine if it should align in world or cursor space (or local if none are pressed).
So if you setup an
ALT + X keymap, it will always align in world space, even if you pass in local or cursor space via the keymap.
I feel like the pie is also much more convenient, as it takes up only a single keymap, vs up to 9, if you want to cover all alignement approaches.
Perhaps I glimpsed over this, but is there a way to update the addon to a newer version without affecting my customisations to the keymap?
The best installation method is doing it manually. Remove the existing addon folder, extract the zip and move the new folder where the old one was. This will keep all your preferences as they were.