Button color when clicked/active

I find the View 'Flat Mixed' very useful, but I also want to have a Flat View showing only folders - no files.

I created a button for that, based on this topic: https://resource.dopus.com/t/flat-view-without-files-2/32185/10
but it causes problems the existing 'Flat Mixed' View, that I can only solve by closing then re-opening DOpus if I want to use 'Flat Mixed' View.

Ideally, I'd like to create a button for a Flat View that shows only folders and does not interfere with other Flat Views, but have had no success.

So, I decided to use a filter: Set HIDEFILTERFILENAME=*
I don't want to type that in the Filter every time, so I created a button with that command.
The button works well, except that its appearance does not change if I have clicked it and it is 'On'.

I have spent the last hour trying to figure out how to get the background of that button to change so that it is obvious that the filter in on.

I read about @toggle in the manual: https://www.gpsoft.com.au/help/opus12/index.html#!Documents/Command_modifier_reference.htm and tried some things, but could not figure out how to get that to work, or what it needs to be combined with to work.

I hope someone can help me edit the filter command so the button background color (highlight?) changes when the button is clicked.
Help me create a button that will hide files in a Flat View without affecting the other Flat Views.

A button which only runs that command should automatically indicate when it is on. Works here from a quick test.

When on:


When off:


I for got I had changed the command to: Hide Files (which worked, except the botton color did not chnage)
I changed it again to Set HIDEFILTERFILENAME=* and now the button does change colour. Thank you.