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I am new to all of this, is their a way to build a scan that will find channels on charts?
You can write scans that use the Price Channels indicator. You would have to decide what you wanted to know about those channels - maybe get symbols where the price channel is rising, or falling, or getting narrower, etc. Or maybe look for symbols with a price channel breakout up or down. You would have to figure out what length you want for the Price Channel.
More on price channels here, including suggested scans:
There is no scan method for finding trend channels, however. You would have to draw those by eye on the annotation tool.