Tumbling tomatoes in pots undercover

In the past my tumbling tomatoes have always been in pots outdoors and whilst they've been reasonably productive I never needed to prune them.  This year  I've put the tubs in the GH and they're going berserk.   Do I need to prune, armpit or curtail them, apart from when they're trying to escape through the door, or do I leave them to their own devices?

I take out the old leaves and fruited stems - so they're not too congested.

I take out the old leaves and fruited stems - so they're not too congested.

Thanks VC, as they're not yet in full fruit, I suppose I'd better let them have free rein.  I did promise myself that the new GH would NOT get like the Amazon jungle and that I would be more restrained.  Not going to happen I'm afraid.