Changing Multiple Agenda's

I recently created agendas for the next 12 months for a total of about 22 meetings coming up. Today I was informed that the meeting location has changed, and we are adding an additional role to every meeting. 

Is there a way to change all of the up coming meetings at one time or do I have to delete them and start over again. Yes the template is updated but that does not change what has already been created

On another note, if I have to start over, is there a way to delete multiple agendas or is it also one at a time

Brian Boulden
Franklin Toastmasters #3429
Franklin Tennessee

There is NO mass change for created dated agendas.

Change your agenda template.
Delete all future dated agendas.
Create your  new agendas using template.