What I did: Spell checker functionality irritatingly bad
What happened: When a word is incorrectly spelt it is highlighted with a red underline. To check the spelling or to add/ignore the word you have to highlight the whole thing using your mouse. Most other Apps only require a right-click of the mouse to bring up the contextual menu.
What I expected: Just to right-click and underlined (mis-spelt) word and be able to Add/Ignore
Things that might be helpful to know (Agenda version, OS and model, etc): macOS High Sierra 10.13.6. Agenda Version 2.5 (42)