While in the train I tried a couple of things..
Wizard mode works, selected a barbarian and got the option if I want to die when I was killed.
After that a game with a different name i.e. not wizard, resulted in the new character also being in wizard mode.
I removed all files and installed the latest version again so now my character is not in wizard mode anymore.
The character I now have has better weaponskills according to the messagebox, but there is not yet a way to use the #enhance command (basically a skills list with the option to enhance different weapon and combat skills)
Nethack has 15 years of added functionality in it, so there are probably some hidden options we did not think about.
Keep up the good work Dzz!
Marco