I found the "Tank movement" Game Demo. I was wondering if you could create a hierarchy of animated parts assembled? I don't see why not. Gonna have to buy into Construct 3 and test it myself if nobody knows. Just can't find anything on it.
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Right now modular parts / skins would need to be separate objects. This includes having separate 3DObject for different textures for different skins (one workaround is to have greyscale tanks and apply different colors to them with the color property, then the same 3DObject parts could be used.) For a little more sophisticated coloring, could use my Two color tint effect (though I have not tried it on 3DObject yet.)