Membership and changing PayPal subscription to one-off payments

There may be a time where you want to change a subscription from a scheduled payment plan to a pay when your subscription ends style subscription. In this event it would be nice if we could just turn off paypalexpress and put on paypalsolo, and any payments from paypal (scheduled or not) will be accepted.

I asked this as a question, would make a great feature:
https://premium.wpmudev.org/forums/topic/membership-and-changing-paypal-subscription-to-one-off-payments#post-102222