Hey,

as I understand configuration sets and configurations are maintained in the app studio.

1) Can someone tell me how to delete a configuration set after it's created by mistake? 

It can't be left out because once created it will be visible on the Administration landing page... 

2) I noticed that creation of a configuration set equals some weird class being created: for example: Pega-Configuration-Testbde213c123ab4f12ab5f8aca3366d123. I'd like to understand since when classes are supposed to be used as some value storage? :|