I would like to change my primary email address

Over the years, I have migrated from one email address to another. My Bentley account still uses my old, functionally obsolete email address. I would like to update that to my current personal email address, but there appears to be no way to do that. Could someone point me to the correct way to make that edit, or could someone help me make that change?

In addition, is there any way to link between two accounts? I have my personal account, which I have had here for ages, but I also have a work account due to the IMS/licensing.
I do NOT want to merge my personal into my work, but there are number of things I wish I could merge/manage from my work to my personal (like training).

Thank you.