Trend lines and time frames

Beginner Questions
1

hello,
does anyone draw trendlines, flags and pennants on charts with a timeframe of less than a day, like one or 4 hrs or even on minutes charts? And do they have any validity(do they work)?

2

Hello,

I draw horizontal s/r zones on the weekly, daily ,and 4hr.

I wont chart anything less than the 4hr. Too much noise on the lower timeframes for me.

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