How do I get the Read Only Checkbox to be enabled. We would like to have a dashboard be readonly for some users. Clicking in the checkbox doesn’t check the box. 
It looks like the Read Only checkbox is not available for Dashboard Assembly
The work around maybe to put in a Condition in the Updatable BAQ Pre-Processing to be user belongs to a specified group.
Can you just deploy it as a runtime? Or is it customized?
Custom