just wear the applier at the same time as the mesh body and click the applier button on the applier hud

if you don't have an applier for your skin you'll need to see if they sell it extra in their store, or you may have to find a new skin maker if they don't support mesh bodies

yep, all you need to do is wear the mesh body and add a skin applier hud and then click the hud

okie dokie, I will look into that thanks yall!