[swap the main with the dual]

I would like my dual class to become the main class. it's possible?

[Wizard Info]

Hi, after more than a year of absence I resumed playing my Storm Sceamer but I am in a confused state, too many novelties and honestly I did not understand them all, for this I ask for help, I am 100 lv
I would appreciate any suggestion to best equip it on every detail. At the moment I'm confused
Thanks