Need some help on making armor item in to racemenu body part

[FwllensAngel]

So it's my first time to creat a topic on nexusmods. Here I want to ask for some tips. I'm using the mod called Wearable Dragon Horns and Tails , and it's truely great mod. But I don't want make it as equipment instead a racemenu silde, so I just simplely move the tails mesh file into new folder and make a slide file. And it seems like it's not enough for after I apply slide, the physics of the tails goes wrong. It just like noodles and directly go throw the ground. How can I solve this problem? I'm raw in making mods and hard to find related guide so that I try to ask the users and modders on nexusmods. Can anyone lead me a guiding?