Confused by PrusaSlicers way of saving settings... Lost all my settings, need som helt explaining how it works.

So today, I figured that I would like a generic PLA setting added to my filament-settings-tab. So I choose the "Add/Remove-Filaments" option in the dropdown menu. Now a wizard comes up... The same wizard if I had choosen "Add/Remove-Printers".
Very confusing, but Ok, I find the filament tab, and find som generic Prusa-PLA. And I click Finish. Now all my print/filament/settings are lost. But I got that Generic Prusa-pla that i had chosen... :(

What am I doing wrong here? I though that you would be able to add a preset to the ones that you already have.

After this I figured I had to export some settings and inport some settings in order for me to save my own settings. But this seems to export a snapshot of the current setting only. 1xFilamentsetting+1xPrintsetting+1xPrintersetting, Even though I onlt wanted filament-settings....

I guess my question is ... how do I add a filament preset without loosing anything like when I tried to find a prusa-generic-PLA or messing up my other settings when is tried the import/export thing?

I really need som guidiance on how to use this program.

Ps. I have used it a long time, but I didnt try to add any extra presets. Thats when it all went wrong.