Is this possible?

Yes, there is a way to change that.

However, as you do not appear to be licensed, you will first need to log in to your Customer Area and add your forum username to the Forum Users page which will then allow you to post in the relevant customer forums.
 
No problem.

You can be added to someone else's license using the same method I mentioned above if you need to be getting support on behalf of a license holder on a regular basis.
 
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