Organized/documented shortcuts

As the number of shortcuts grows, it becomes harder to determine a) whether a shortcut exists for a particular function, and b) where it exists within the list. (Example: "Flip direction" might be expected to appear under "Stem" or "Direction"; "Flip" makes sense but was not the first thing I looked for.)

I'd suggest these improvements: i) Provide a 'search' mechanism that will scan the contents of the shortcut page. ii) Where appropriate, title/group shortcuts by the nouns they reference, rather than the verbs being applied ("Stem" versus "Flip"). iii) Add columns in the shortcut list containing explanations and manual page links. (These descriptions could be edited here on this forum via wiki techniques, and periodically imported to the program, e.g. via a text/config file.)