Running ExtendScript on multiple projects at once - questions. (Multiple Active Sequences?) - Perfs?

Hello,

I just tried opening multiple projects, and I noticed that the sequence of the new project would show up next to the sequences of the previous project:

Since clicking on the previous sequences, show up the previous project name, I assume that the previous is NOT closed after opening a new one.

I usually take the project inside a variable and then take the "active sequence". Would it be possible to obtain the "previous project" inside a varuable, while we are on the new project?

var proj = app.project;

=====> How do we ensure getting all open projects inside different variables? I think I have seen somewhere in the code something about projects, once, but I am not sure.

2) an "Active sequence" can that be "true" to previousely opened projects (not closed yet) even though the user is on sequence of the new project? In other words, can it be possible to have multiple active sequences at once (if each one is from different project open)?

3) If 1 and 2 are possible, then is it possible to run the extend script on multiple projects at once?

Or even run multiple extendscript scripts at once? (In visual I would need to be able to click the "run-> debug->ppro" multiple times for each script.)

4) PERFORMANCES:

Don't know if anyone in the world have tried it, maybe only the conceptor of PPRO can answer this, in the case multiple projects are "working" (compiling video, or in this instance receiving commands from extendscript), would PPRO DIVIDE its "ressources" to handle multiple projects at once ? (Like running one command inone project, then running one command on another project, and so on, until everything has run)

Or will PPRO use MORE ressources from the computer to be able to HANDLE every project EQUALLY, resulting in using more GPU, cpu, ram etc?

(As you might expect I want it to be the second answer, otherwise I am not interested in running multiple projects at once)

Thanks.