Creating body blemishes and freckles on Metahuman in UE 5.7

Hi. I’m fairly new to Metahuman and Unreal Engine. Just wondering, with Metahumans, how I can create body blemishes (e.g moles, freckles, sunburn, scratches, scars, bruises etc.)? I can only find a freckles option for the face and the ability to add some redness which is very limiting.