Hi Conner,
The version of Method is set on a per account basis. In order to obtain access to the pro features, each licence on the account must be converted to a pro license.
You may be able to downgrade to the standard version once you have completed copying the screens, assuming your account meets the requirements. For example; if any of the screens that you copy use custom tables, these tables are generated on the account in order for the screens to function. Custom tables are a pro-only feature so you will be unable to downgrade as long as these custom tables exist on the account.
I hope this helps.
Audisho