Right now there's not a nice way to do it. The best option would be using Families. You would check for collision with a family that would be composed of SprA , B , C etc. Hopefully this will be coming in the next version. Second option would be using of course OR event but C2 doesn't have it yet :( Third option is create a variable like 'Collided' so you do
sprite is overlapping/colliding with sprA -> Set Collided True
sprite is overlapping/colliding with sprB -> Set Collided True
sprite is overlapping/colliding with sprC -> Set Collided True
If Collided
Trigger Once (depends on wanted behavior) -> Do Event
Very ugly. There must be a nicer way but i formulate one right now :D