This post has been set to “draft” as this feature is now part of the extension and this snippet is no longer needed.
At present, the PayPal Subscription Extension provides for bulk expiring users, but not for bulk application of an expiration extension.
This code snippet will add a bulk extend process to the bottom menu selection. The bulk action dropdown will include “Extend” and there will be a number of periods selection and then a selection for the time period.
If I have opportunity to improve on this process, it may make its way into the PayPal Subscription Extension. For now, in order to make use of this functionality, add the following code snippet to your theme’s functions.php file.