If that is the case im very disapointed with this software. If it is aimed at Event / Lighting design applications then it really should have masking symbols. What theatre / event does not use / have masking????? therefore it should be in the design.
Loads of other lighting cad software includes masking. IE WYSIWYG, LXdesigner.
I do like the software but not having certain things like this at a touch of a button slows the process up loads.