people who alot of tables at one time like that usally have multiple monitors set up to their computer. But thats insane playin 3-50 tables at once there is now way u can keep up all the tables. I play poker for a livin and the most i play at once is like 7. If u look at most pros they dont go past 6-7 tables at a time bc its hard to keep up with whats goin on at each table and how people at ur table are playin. The guy who is playin 30-50 tables at a time cant be making much money doing that