Can anyone answer my question for oscillators?

Hi everyone,

I was wondering if someone could help out to code this output of a selected source. Mainly to show if the oscillator (RSI or TMA plotted on a RSI, Ratio, Sum or whatever oscillator) is BETWEEN two limits on the PREVIOUS CANDLE. For example if the Ratio (prev candle) was between 0.5000 and 0.2000 - and shown in the left top corner of the chart. I find it difficult to assess more than one filter at the same time in a chart all presenting very accurate digits that need to be taken in account before validating a system.

This output/these outputs would very much ease the decision making before entering a trade and focus on the chart more.

So I've attached two photos how they could look like and for multiple filtering this would be an essential tool.

Of course I tried to code it myself but I know only the basics of c# and only to read a code.

I would appreciate it if someone would take the time to look into this and maybe craft a useful tool like this.

Thank you!