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.