New beta cycle: New Z axis scale setting; Animations editor improvements; Lots more.
I am thinking of a workflow that uses the new importing options that could be useful to you, but explaining it here is difficult. Check out this forum thread for more details.
construct.net/en/forum/construct-3/general-discussion-7/animations-editor-new-161331
If you need some help figuring it out, just make a new forum thread, and I'll explain more over there.