Sorlock through Charactermancer

Hi guys! I'm pretty new to DnD, and me and my group are starting our second campaign in a few days. I'm thinking about making a Sorlock, and I'm trying to set up my character through the Charactermancer, but I don't see the option of selecting my second class anywhere. Do you guys know if it's possible to set up a 2nd class through the Charactermancer, or do I have to put it in manually? I have the PHB and XGE purchased on Roll20.  Thanks alot!

Yes, level up your character and there will be an option to add a multiclass. Just press the "+" button to add. See the bottom of the screenshot below:

Oh, it's that simple? How dumb of me! Thank you so much!

Bear in mind the Charactermancer can get a bit screwy with spell choices and multiclassing when you level up. I'd use a spreadsheet or app on level up to make sure you're getting the correct spell list.. I've also been granted extra cantrips with multiclassing, including from multiclassing into Barbarian, which was odd. If anything does go wrong with the spell list, don't panic. Just skip it, and do it manually by drag & drop after the charactermancer is complete.