I just connected two brokers simultaneously, apparently without problems even opening two test operations in each of them. The trick was:
- Open one of the sessions in tradingview desktop version.
- Open the other in tradingview web version.
If you have two screens you can easily view each session in one of them, or split one screen into two if it is large enough. That would allow you to manage simultaneous operations in both brokers.
I have a premium account, but I think it won’t affect.