CW1515 Multi Window

I hace a Chuwi Hi10, cw1515, and I would like to use multi window in Android.

Since it’s a lollipop Android tablet, it is not implemented yet.

I have used xposed with multi window in old phones previously, but it doesn’t work I’m my chuwi. I can not install xposed framework.

Has somebody been able to use multi window in this tablet, with it without xposed? How?

Thank you a lot in advance.