Multiple Monitor Windows in TWS?

It looks no more than one "Monitor" window can be created/displayed. I have sub-accounts and would like to be able to see "Portfolio" view for each individually. Currently, I need to select from the drop down box to choose which account to display. I can choose "All", but that's not exactly what I want. If anyone knows how to create multiple Monitor windows, please share.
Thanks

 

Select New Window - Portfolio. This creates a new Monitor.

 

No, not for me at least. I can only see one. Can you actually create two of them and put the side by side? What's the version of your TWS? I have below.

 

980.4l Sep 29,2020.

Yes, but only for a different Tab that does not have a monitor already.

 

Yeah, but I cannot have it the same Tab it seems. Oh well, not big deal. Thanks for your help.