I did send you the information requested via pm but never got a reply.  In any event, I was later able to purchase a PC with W11Pro so I have cancelled the order with W11 Home.  Consequently the issue has become moot.
I currently have a XPS 8930 Desktop which was originally loaded with W10 Home.  Subsequently, I purchased a license key to upgrade to W10 Pro.  I have now purchased a XPS 8950 which is scheduled to be delivered in a couple of weeks.  The particular components of that new machine only had Windows W11 Home as an option.  I want to run W11 Pro on that machine and will no longer need to run W10 Pro on the 8930. So what I want to know is whether there is a way to downgrade the W10 Pro on the 8930 back to its original W10 Home and then use the W10 Pro license key from the 8930 to upgrade the W11 Home to W11 Pro on the 8950?  And if so, how I would do that? Thanks for any help.
XPS 8930 W10Pro --> XPS 8950 W11Home - Best way to upgrade 8950 to W11 Pro