Is there any turn around for this problem ? I am also looking to have same feature for FieldSet, I see some different kind of ToolButton we can use but don't see any feature where I can have checkbox. Any help will greatly be appreciated.
What's the status of this? This is a really important feature that was there in 2.x and no good workaround exists in 3.x. Is there a timeline of when this will be added to 3.x? Is it in 3.0.5 by chance?