I must say I am not at all happy with existing support&resistance - and what is now trendier - supply&demand-zone indicators because I think they generate their boxes at extremes of price (more or less like any zigzag or semafore does):
In reality, though, the ranges develop at different places, i. e. when GRADUALLY buyers (for support/supply) or sellers (resistance/demand) come back into the market after a trending phase because they think price has risen/fallen enough to become - once again - attractive for them (ranges with rejection/overshooting/perpetual to and fro etc):
that, I think, would be something a coder should try to programme (but sadly no one dares or wants to):