The following is the results of both blind googling and brute forcing the keyboard space. If this is incomplete, please let me know so that can be fixed.
|Accent/Ligature||How to type||Example|
|œ (oe ligature)||Alt-q||œuf|
You can also type a forward facing accent on most arbitrary characters by typing it and then pressing Alt-Shift-e. Circumflêxes can be done postfix with Alt-Shift-i too. Thís dóesńt work on every letter, unfortunately. However it does work for enough of them. Not enough for Esperanto’s