Can you have TWS open for two accounts at the same time when using mosaic view?

I have always used classical view.

However, I have heard you can have TWS open for two accounts at the same time when using mosaic view. Is that correct?

 

Yes, I have had four open at once. Check how much memory you are using,

 

I believe you can also set up separate users for the same account.

I’ve never actually done this myself, so you’ll have to read up on it.

I believe you’ll have to separately fund and purchase separate MD subs for each.

https://www.interactivebrokers.com/en/software/ptgstl/topics/ptgsubaccounts.htm