Disable Updates for Computer Group in Small office Administration

I have about 100 computer in a computer group in Small office Administration that are locked down computer (froze harddrive image) that I need to disable avast from doing both Program updates and definition updates, the reason is that these computers are locked down so they updates aren’t store and when they reboot (all of them turn on at 8AM) they start downloading this updates making some huge spikes on my fiber connections. How do I disable these (for one group only) in the web interface?

Never mind. Found these settings under Updates (and Cloud services as well) hopefully this works.