Grouping in Responsive Captivate 2017

Sorry if this has been answered before, but does Group not work in responsive projects in CP2017?

If I do a non-responsive project and select multiple objects, group is not greyed out and works.

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Basically I have a 5X5 grid of smart shapes that function as 25 buttons radio buttons. I want to change the state of one group (all buttons) to normal and then the clicked one to a selected state. Trying to avoid having to change the state of 25 buttons separately.

Ideally I want to use a shared action with 3 lines of code and 6 parameters:

Change State of AllButtons to Normal

Change State of Button1 to Selected

Assign UserVar to 1

Change State of AllButtons to Normal

Change State of Button2 to Selected

Assign UserVar to 2

etc