Crossover Simulation With Two Enclosures Help

The driver positioning in VC is intended to account for lobing, and will manage delay at the same time. Therefore measure each under the same relative conditions (in other words don't use a common measurement position, use a common per driver technique). Then place your mounting separations into VC.
 
Yes 🙂 I would highly recommend reading the "How to start working with VituixCAD" section in the help file. You'll find information on how to make measurements for several different programs (CLIO, ARTA, REW and SoundEasy) and links to several videos. It's a great way to get started and answer a lot of beginning questions. And you can check out the "VituixCAD for Newbies" thread too. Enjoy!