I am trying to imitate layer function of storyline by using groups. So I want to display a modal, when the click on the button. To close the modal, I also use X button(shape). I want to close the modal + change the state of button that is clicked for opening this modal. But as you can see it is grayed out.
If it is grayed out, you don't have custom states for that button, nor a Visited InBuilt state. You cannot change to the InBuilt Rollover nor Down state.
I would think that there aren't any objects with states at all.
I have the same problem. I have just created over 27 hotspots with a custom visited state. However, I cannot select the Change state action for any of these objects (image buttons).
Did you read the thread? Are you sure that you talk about a 'custom' state because there is an InBuilt Visited state which appears when the interactive object has been clicked at least once. Maybe insert a screenshot of the Object State panel to check?