Adjusting users

Hello.

I have used the membership plugin for a year now. I need to be able to click into each membership and make it so that they can pay again January 1st (They all signed up at different times). They are not allowed to pay until 365 days have passed.

Right now people cannot pay again for January 1st. Their memberships all start January 1st even if they sign up for later in the year...

How can I go into each persons membership and adjust this manually?

LAra