Hi YLAP,
I looked more into your issue and found out from my colleague, that some options in in-app cart were removed as they were too complicated and our users were not using them anyway.
Most users tend to click on targeted offers (toasters, banners and stuff) and buy the stuff we offer to them.
Also users with autorenewal enabled, buy the product and don't want to think about other purchases and stuff, so they leave it on "automatic"
Unfortunately in your case, if you wanted the license prolonged, you would need to contact our support and they could merge your licenses together
I will ask the product manager about your idea and we will see whether he likes it or not:)
Regards,
Jiri