Step Forward Charts?

Seems to me that a good way of learning to trade the higher time frames say 4h - monthly on a purely technical basis, would be able to look at old charts and study the patterns, draw S+R etc then step forward a period at a time until you hit your entry criteria. Place your order then step forward again to see how it actually played out - even changing the trade after a few steps. Just like the real thing but accelerated.

Sort of educational back testing - does such a system already exist ?

Kinda what I do, i think? Start with a monthly, and draw a zone for R and S. Then step down to a D
and lower. When price action goes into the “zone” on a 4H/2H chart, I can see what my risk is to set stop losses. So, going long when price falls into zone/short when price goes up into zone.
This, at least will set a range. It will either bounce back(support/resistance) or go through if you follow Elliott Wave…