you bought a sogftware which is broken and only a part useful, then you got a vouchere code for a another programm. You spend 20 euro for nothing ;)
Its puty there is no user friendly manuel for making own sets with kenns studio... very pitty....
Could you explain what is broken in the current version of Kenney Studio? As said, we're preparing a last update and it would be fantastic to get all issues out. You've spent $19.95 to get access to our software (you still have, and will always have access to it) plus three years of updates next to getting a large discount on our unrelated new software package.
Kenney Studio didn't allow users to create their own objects, this was also never advertised. Asset Forge can and we've written a guide for it.