Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
I have a Scout, Zara, who moved and transferred to a new unit. She does not show on my roster. She is still on all of our meetings for the year, gets the reminders, etc. They do not like this. I can’t remove her, as when I click on the “edit” button, her name is not there to be removed, though it is there when I save and view the meeting on the calendar.