It's actually fairly common to see two people using a single lane (sharing a gun, etc.), but I wouldn't recommend more than two, except maybe in the farthest lane to the left where you won't be cluttering access to or from any of the others.
How much $ is it for a hour?
Yes, but the room is small so I wouldn't advise more than that.
So far I've seen up to 4 ppl in a lane without issues.
Yes
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