Broadcast Words and Graphics

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I've been camming on MFC for a couple months and am trying to take advantage of more of the cool tech available.. A lot of girls have little graphics or words on their streams (HT, camscore, rank, promotions, goals, upcoming events, cute little graphics, etc). For the life of me I can't figure out how to do this (or even what this is called). Is anybody able to help me/point me in the right direction? Thank you so much!