Chaikin Money Flow Indicator (CMF)

The indicator is awesome, but the only thing make me put only 4 stars it is that I don't see the zero line cross and I look into the settings and nothing to enable that.

Hello, regarding the Chaiken Money Flow Indicator, if you guys are able to customize and make an extra option to add more periods, It would be a great volume cross indicator. It's just the extra period option and everything else could remain the same. I would really appreciate it. Let me know asap, thanks!
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simple, useful.