Step by Step setup basics for HDT Physics Extension     Install SKSE. It is required!   Install a body with BBP or TBBP compatibility. Start here if you need one. Well known bodies and their derivatives will have this. Others will say in their documentation.   Install skeleton with BBP or TBBP compatibility. Start here if you need one. Most often, this will be an xp32 created skeleton. Others will say in their documentation.   Download the HDT plugi