ONly I want know...subscene person 2.
Which button changes person number 2?
It only constantly changes person number 1.
Which button does I use to switch to person 2?
Like I said, I unfortunately can't help you with the non-VR version and keyboard-button-clicking.
How to do it in VR (you wrote you have "openVR"):
You can see the man in the scene you want to exchange? One of the buttons on your VR-Controlers are opening the VaM menue, which is floating in the "air" in a spot near to where you have clicked that controller menue-button. On the lower end there should be two big buttons like "play mode" and "edit mode". Select "edit mode" with your controller.
Look at the man again. Once you have opened the VaM menue in edit mode, you should see many colored points on him.
Look further and you will see some other floating markings for the light and so on. The more complicated the scene is, the more points you may see.
One of the markings, most likely somewhere near the man, looks like a person. Find it and select it with your VR controller.
The VaM menue will most likely change. This is the main menue for editing the selected person.
Make sure you really have selected the man and not the woman. Best way is to look at the available clothes or the hair at the upper end of the many menue tabs (mine are at the right side, but that can be altered).
You now have selected the person.
An completely other way to select a person is:
After you have selected "edit mode", look at the menue and at the lower end you will find a button with a single big arrow on it, like some sort of "select pointer". Click it and it will open the "select menue". On the left side you will see many entries. The more complicated the scene is, the more entries you will find.
There will be an entry that reads "person 1" or "person 2" ...
With clicking on that entries, you can select a person as well. This is maybe not as intuitive like the way described above, but in very complicated scenes it is very usefull. Look at the main person menue like I described above and make sure, it is the right person. Now continue.
Now look at the main person menue. You will see many tabs on one side. One of the many different tabs reads "Appearance Preset". Click it and
a menue will open up: on the upper left you will find "select existing". Click it and you would see all your saved appearance preset.
Most likely you have none at this point.
At the left side of the "open" menue, you will find some text entries, one above the other. This is where you will find downloaded stuff in the new "var" file format.
The upper few entries are for searching and sorting your future big list. At the moment there will most probably only some few entries.
If you found your downloaded figure there.... then all is OK. Click it and you are ready to go.
Unfortunately only some few creators share their looks directly as a appearance preset.
You have to do some more work to get it ready to use in other scenes.
Here is how to do it:
Open the VaM main menue with your controller's menue button like described above.
Now look at the lower left side for two icons that are looking like OPEN AND CLOSE scenes.
Click to open a new scene and look at the left side. Like described above, there are some text entries one above the others. This are again the downloades scenes in "var" file format.
Search for one entry that looks like it could be your downloaded look from the patreon website.
Select it and it will open up some new entries in the main "open" menue. Click on the entry that is most likely the scene you want to open.
You now have opened a new scene with the person in it that has the look you have downloaded.
Like described above, select the "edit mode", look for all the floating points and find the one, that looks like a person.
Select it and you have selected the person you want.
Like described above, go and find the tab that reads "apperance preset".
Now don't (!) click on "select existing" but on the button that says "save..."
Click it, enter a name you are able to remember, and save the look from the scene as a "appearance preset".
Now open the scene (or animation as you called it above) where you want to insert the new look.
This is exactly like you have done it above with the other scene.
Now do as you did above, click "edit mode", find the point that looks like a person, be sure that it is the right person, find the "appearance preset" tab, click "select existing" and now you will find your newly saved appearance preset. Load it and you are done.
This are some very basic tasks. You will do them again and again in VaM, and at some point, this will become very easy.