Feature request: Edit subscription status and/or start date

It would be very helpful to be able to edit a subscription's start date, status or both. I used to be able to change the status to Disabled to temporarily remove access from a user, but that feature no longer works.

We have several "snowbirds" who want to pay in advance of their requested start date for their online subscriptions. I like to process those orders through Blox so that confirmation emails are automatically sent and their orders are entered into the system ready to go. The problem with doing this now is that the person receives immediate access to the site, and the only way to temporarily remove that access is by changing the expiration date to an expired date. If I could change the status to Disabled or change the start date to their requested date, the problem would be solved.