Altering a Mantis to take Woolly Rhino Horns

Hello World.

I want to create a quick mod that simply changes the preferred food to Rhino Horns instead of deathworm horns. I think this is in the Dino Carion Feeder B, but current PC runs out of memory when I try to open it. (I’ve got a new SSD for a replacement PC on the way).

Also… I’d like mantis to wear hats. I’ve added the element in Dino Tamed BP to do this.

My question is:

Once a change is made to an existing dino, how does one export that in a way that overrides the vanilla mantis?

Kind Regards,
Lord Sunderland