For my main site I use the calendar is a company intranet site I made. Including all types of company forms, workorders etc. And over the years doing this (the site is 5 years old. moved it from wordpress to bubble 2 years ago) I have noticed the simpler things are for end users, the better lol. some people prefer a popup that says move date. they type in the date or use a calendar dropdown and press save. done. simple. hope it works out for you.