Using Lyra example asset for animation.

Hello, im often creating scifi first person and third person weapons with animation. Can i use the Lyra example character for animation? If i use that, can i sell it on marketplace (i just want to sell weapon with third person and first person animation), but last time when i use my custom fps arm, i got a lot of complain about it not compatible with epic skeleton. I think the Lyra example asset is quite good for animating. Please answer me, thank you.