Hi Bill.
At the upper right of the plug's UI, there is a lock PIN. If you select it, the plug will stay open as you open other plugs. Do that to all plugs you want to see onscreen.

Hi Bill,

Pinning
Pinning the FX is a great way to do it and I use that a lot when I am fine tuning.

Console View
The method that I find that works best for me is to expand the plugins that I want to see in the Mixer console window. That way I can see every plugin on every channel all at the same time.

This works with the Native plugs. In particular I use it for the Compressor, Pro EQ and the Presonus channel strip collection but it works with all of the native plugins. The Fat channel is handy at times also.

You can then edit the plugins right on the console without having to open up the channel which makes pulling a mix together really fast.

This works best if you have a large screen and unfortunately it doesn't work the same with 3rd party plugins.

John B