I want to use Directory Opus 10 to not trial

Hello 안녕하십니까.
Today. I downloaded and experienced the Directory Opus 10 and it went well.
So I want to buy Directory 10 pro. Let me ask you a question.
If you purchase Directory Opus 12
Directory Opus 10 and 11 degrees can I use it?
Or is there a link I can buy?

If you buy Opus 12 you can use your licence with Opus 10, if that's what you want to do.

Thank you for the information. Dear Jon,
I'll buy it later.