XnView Software

yes & no; I open the 2nd,(launches in browser) No category sets panel, I select an image, double click "on" an image for full screen (doesn't matter if I view only 1 or 100 images (in full screen) when I double click "in" the image again and return to browser view, there it is, the category sets ...

Yeah, I did try that, many times, with no success.

Maybe I didn't elaborate well enough.

So If I am running 1 (single) instance of XN MP, then yes, that does work. However, when I then open a 2nd, 3rd, 4th ect. instance of XN MP (which launch in browser view as I want), after I select an image ...

I like to run multiple instances of XN MP, and when I do so every instance except the first will default to having the "category sets" panel open. When I go to view>panels>category sets and uncheck that option, it will turn back on after I view a picture in fullscreen, when I double click out and ...