How do I include events/actions in groups?

Have created a few events with actions. Now have decided i want to put them in a group. Have created a group but cant seem to get the previously created events/actions into the group. Copy/paste doesn't seem to do it. Maybe I'm doing something wrong. Can i get those events/actions into a group without creating a group first and re-doing all the events/actions?

You can just drag them there to make them subevents of the group..

Thank you little Stain - so simple.