User-defined journal entries

There's a lot to do in this game, many of which are not "quests"... It'd be cool if I could add my own entries to the Journal and optionally the map. Like, you should be able to add them either through the Journal window (location-less), or by some sorta click command on the map (to tie the note to the clicked location). In addition to the checked/unchecked/ignore states, you should also be able to permanently delete them (maybe instead of marking them as "done"?).

I know I can just keep my own TODO list on paper or another app, but it's 2021 and I forgot how to write, and I try to keep the alt-tabbing down to a minimum.