You can ignore it. This is just trying to helpful, but there are only the 4 most common SPMs that are handled by that view:

• SetpointManager:Scheduled
• SetpointManager:SingleZoneReheat
• SetpointManager:OutdoorAirReset
• SetpointManager:FollowOutdoorAirTemperature

Anything not in that list but still allowed by E+ will still work.

I filed an enhancement request at openstudiocoalition/OpenStudioApplication#708