Adding face script on Cogwheel's RTAB Battle Status

[rekkatsu]

So How do I add face script on cogwheel RATB? I tried writing  on Window_Base and make draw_graphic_face but It didn't show or error
First of all I use custom battle system which connected to battler graphic and I wanna add something  like this (edited)

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and I found this Battle Status script by Valcrist, I wonder how do I add cogwheel's RATB? lol

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Thanks !