I have an option to buy machine studio. Can I still upload komtrol products. Etc ?
Where are you expecting to upload things? You can't upload anything to Maschine Studio - it's just a controller. Perhaps you mean download (to your computer) - but then again, the controller isn't going to prevent you downloading anything.
I'm not sure what you're asking. Maschine Studio can still be used with Maschine 3 software.
More info would be helpful here, what's your setup? Operating system, etc…?