A Plugin that lets you add notes to item Tooltips
Right-click any item in your inventory to start adding a note,or make a label in the config window to start adding your own labels
Not right now. TooltipNotes was last built for Dalamud API 13, and current Dalamud is API 15, so the installer doesn't list it at all. It will come back if the author updates it. In the meantime, the similar plugins below do work.