The latest update (3.9) adds a admin screen that allows you to

• see and change which meta keys are excluded by default from the plugin and
• exclude more meta keys
• delete user meta records for selected metakeys (cleanup)
• see totals of meta records for meta keys

This became essential for anyone using S2member, and handy for anyone using Advanced custom fields which seems to create additional hidden metakeys for every custom field.  Thisplugin will attempt to help you out by default excluding as many unnecessary fields as possible.  You can then update.

The S2member access cap times field is keyed by time, which means that as time goes by there will be more and more sub fields detected by amr-users and the fields and nicenames page will become impossible.

s2member access cap times field

This is clearly unworkable.  So a admin page to exclude meta keys was added. This page will also allow you to delete meta records. Be Careful!  This is a confirmation step, but no undo.

excluded meta keys

The “find fields and nice names” page has been updated to help highlight what’s going on.

updated nice \names