option to check in proton calendar
Often I have tasks to do within the day and I don't necessarily want to delete them from the calendar once they're done in order to keep track of the day they were executed nor do I want to keep getting notifications for them as they are done. Therefore I think it would be amazing to have the possibility to check the tasks in proton calendar (like in a to-do list) so that we don't get notifications for them anymore but they keep appearing as executed in the calendar. I wouldn't force all events of the calendar to be like that as maybe other people don't want this feature, but having the option to use it would be really practical!
One could even imagine a feature which would propose to postpone the task to the next day if it could not be performed the day it was planned (happens a lot to me sadly and I guess I am not the only one).
Malcolm Litchfield commented
I think a fully fledged tasks app/program would be a better solution.