XnView Software

Despite this good material, I cannot get my head around category sets. How do category sets work?

I am a long time Picasa user and considering to switch to XnViewMP. One of Picasa's strengths is the way you can search on tags, captions, album titles etc. You just type the a word and it finds the photos you are looking for. I am trying to understand how this works in XnViewMP, but sofar without ...