Call up custom indicator in an AFL

I coded a custom indicator for ConnorsRSI. It is showing up in the Custom folder and I can
attach it to a chart. But when I try to write a simple buy/sell script in the
AFL Editor it does not recognize my indicator. It also does not
show up in the auto-completion drop down (typing first char and pressing ctrl +
space). Did I miss something or do I have to include the indicator somehow?

I got the code for ConnorsRSI from here:

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