The new property will prove very useful. But ......
To test it I set the property to 1=0, and in Analyze mode saw the warning that the sheet was conditionally hidden. But where has it gone ? In Edit mode, it is no longer in the App Overview ! Seriously ? It should be there but flagged as hidden.
When you do the same for a table dimension or measure, you always have access to the properties panel to edit the condition.
Unless I am missing something this needs fixed asap.
As an update .... based upon chatter on LinkedIn the hidden sheet is available - but only when you go into edit mode in another window and navigate to it. Much better if you could
1. Extend the online documentation to explain this workaround
2. Change the behavior so that the hidden sheet is visible in the app overview with the eye symbol.