Indicator readings change with window size

I use the window tiling feature on the MT4 platform (6 windows 1 screen). Just noticed that my oscillation indicator readings (RSI, ATR, Stochastic) change with each window size. Does this make the tiling feature useless? How does this effect my reading of so many lessons and strategies on this site when the author does not include what type of setup they’re looking at? One person’s overbought/oversold is not another person’s overbought/oversold.

Guess I’ll just have to pick one setup and build my own strategy off that setting. Another reason why one person’s strategy won’t work for anyone else.