How to delete one coponment from an .ydd file ?

toitoine66

What i want to delete: (http://www.hostingpics.net/viewer.php?id=344284Sanstitre.png)
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In fact i know Zmodeler3 is made for that, but i don't want made models, just delete componment for them. Maybe a script is possible to make appear the only componment i want in game?

Thank for help, i want to made an Police riot from the 60's but i just need that helmet and that will be done. Unfortunatly in game i just see the cap not the helmet on my peds.