CraftStore Help

[NeuroticPixels]

Since the author doesn't seem to want to give a decent response, which is totally their prerogative, I'm turning to the forum.
Maybe I'm just a complete imbecile and it's extremely obvious. But I asked for help, and... the response was 100% not helpful. For me, anyway.
Can someone please enlighten me on how to use the features I asked about? (Seen in the following image.)



Thank you.