Importing various BVH files for a MakeHuman model

Hello, I’m trying to import various BVH files into Blender but I’m failing. The models are coming from makeHuman and the BVH files are free ones I’ve found online. The first one works fine and the BVH file imports and gets applied fine to my model, but if I try to import a second one it just over writes the first.

How do I import more than 1 BVH file using the “Import and retarget” option?