Is there a way anyone has found to move a character from one campaign to another?  I have multiple campaigns running with different groups on different schedules and someone wants to change schedules and move to the other group.  Do they have to manually rebuild the character in the new campaign, or is there a way for them, or me as the DM/owner, to move them to the other campaign?

They leave with their current character.
You send them the new campaigns invite.
They join under the same character.
They may have to go in and re pick spells and such as they lose access to those if they don't already own them.

Thank you.  I was afraid to take the leap and try it.