XS Community Edition/Features/Liveiso
In the open terminal type: sudo xsceinst
Proceed through the guided prompts
Click partitioning and then click on "done "
Click on "begin installation"
Should you want to create another user please do not use "xsce-admin" as a new user, that one is already occupied.
Please refrain from using liveinst during testing, tring to implement that functionality in the future, but if you're brave try "xsceinst" at the bootprompt.