You can use as many wallets as you can. The bot uses a CSV file wherein you can insert the information of the wallet you're going to use. Every time the bot attempts to do a transactions, it randomly chooses any of the wallet and checks if it has enough balance to continue with the transaction. If it doesn't meet the requirements, or if the transaction fails, it will move on to the next wallet. The bot will eventually automatically stop if all wallets fails to do a transaction.