If what you want to keep is data, the only way is to put it in a variable. Variables don’t change from slide to slide, but only when there is a trigger that changes them.
If what you want to keep is the state of objects, then you need to return to a slide that is set to keep saved state on revisit.
I envision a combination of variables and a reset button that jumps to a slide set to return to initial state when clicked.
If you want to reset the variables, you will need to create a trigger for each one that resets it to the default value.
If you don’t want to use reset slide to initial state, but do want to return objects to initial state, you’ll need to create a trigger for each one to do that.
