Is it possible, to change the z-order of the Layers during the game?
And if yes - how?
None that I have ever seen, the problem would be anything placed on that layer and then referenced in events would also have to be changed.
Why do you need to do this?
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I am with you, hope someone can tell us if this can be done.
There are tons of ways to associate objects together, and change their z.
Not to mention changing layers order might not play well with layer fx.