Installing older extensions in Animate

Hello,

I've been using a Flash Extension for many years to increase production time on projects. It's called the Holo-Multi Panel. Found here: http://www.downscripts.com/holo-multipanel_flash-script.html

When updating to Flash Professional CC I had to convert the MXP to ZXP in order to get it to work with the new version of Flash, but now with Animate, I can't get it to install or work at all.

Does anyone know if there is a way to get this extension to work? Or know of anywhere to find something similar?

If not, is there a way to get an older version of Flash CC? Such as Flash Pro CC?

Any help is greatly appreciated.

Thanks!