How to set Dashboard category selector checkboxes default value

[RoseZhou2]

Hello,

In Portal 10.8.1 Dashboard, for Dashboard Category Selector, the "Preferred Display Type" is Checkboxes. There are multiple checkbox values. I would like to set a default checkbox selected. Any ideas how to do it?

Thanks

Rose

[RobertBorchert]

Are you using 

Defined Values,

Features, or  Grouped Values?

Defined Values is probably more functional for exactly what you want to do. But if new values are being added or removed on a regular basis it may not work so well. 

[RoseZhou2]

Hi Robert,

 I am using "Advanced" . Please see the screenshot below: