Found my sollution, so if anyone in the future have the same quoustion, just go to art tools in Maya, chose “Edit Existing Rig”, chose the Manequin, go to the skelleton creation stage, press “Save as Template”. Now you can use this skelleton build on your own rigs by just using that template, and every animation comming with Ue4 is usable with your new char (When you import to Ue4 just press the “Use existing skelleton” and use the manequin skelleton.