Adding T-pose to any animation possible for retargeting in C4D

Hi everybody, I'm flashed by the power of Mixamo! But I seem to have a serious problem. When I animate my character in Mixamo and download it, I lose all my materials and textures. So the obvious solution would be to download the animated character from Mixamo and retarget the animation in C4D. My fully textured character is in T-Pose, but the animated character has only animated poses that quite differ from the initial T-pose. When I try to retarget, I get some quite odd animations. Is there a way to add a T-pose to all animations in Mixamo? Something like "add frame 0 as T-pose". This way I could easily retarget the animated mixamo file to my fully textured character in C4D. Cheers!