Pivot Preference

[Alex Go]

Greetings.

This indicator is called Pivot Preference.  It plots (1-(P-S1)/(R1-P)) in a separate window, where P is the central Pivot (HLC/3), S1 is first support((2*P)-PreviousHigh), and R1 is first resistance((2*P)-PreviousLow).

This indicator (#PivPrefBias.mq4) has

#property indicator_separate_window

...now, it plots like this:

this is PivPrefBias set to Daily...

...and, what I could never figure out is how to make it also Plot One Duration In The Future.  The only way I resolved this was by making a second indicator called #Bias_mod_beta.mq4 (attached).

Now, this Bias_mod_beta has

#property indicator_chart_window

 but later in the code, it uses a bool PlotTrend with in subwindow=1

bool PlotTrend(const long              chart_ID=0,
               string                  name="trendline",
               const int               subwindow=1,

 now, only if I place both of these indicators on the chart do I get One Future Duration

same chart as above, with both indi-s on, about 10 minutes later after some news just now

...see, now it plots the future Pivot Preference.

How to make it one Indicator? 

...or is it impossible? as per https://www.mql5.com/en/docs/customind/propertiesandfunctions