This is a simple question, but a very important.

When you rent a trading bot, you subscribe to its trades, when a trading bot finds a pattern it posts a trade in your trade list. In simple -  a trade is fully automated, however you have a budget, that you wish for the bot to use. One may have 100$, others may have 1500$, so you need to specify how much budget you want to spend for this bot.

So let''s say your budget ir 500$, the bot however needs to know how much budget you want to spend for a deal.
Let's say 33% is the amount that you want to spend for a deal, giving it a chance to have max of 3 open deals simultaneously.

The more max open deals you place, the less $ you will earn, because each trade will have less capital on it.
The less max open deals you use, the more in $ you will earn, because each trade will have a larger capital.
However, a bot can have a stuck deal for some time, therefore causing you to consolidate your capital for 1-5 days, maybe sometimes more, so you need to have always a spare budget to accept new trades, which the bot makes, so giving it a 3-5 max open deals should be the average middle way.

Now when you have created a 500$ budget group with a 33% deal cap, you can use the budget group for many trading bots, so multiple bots can use the same budget group, giving you a more rapid trading and more trades and a greater exponential growth.

However the more bots you have with the same budget group, you need to have maybe 4-8 max open deals depending on the trade intensity.

When max open deal limit will be reached, bots will not take any more trades for you. And you will be notified by that.