I have had success on other platforms (TOS, Worden) with a custom indicator that combines the values of 4 different common indicators and plots it as 1 single value. The plot is then scaled as 0-100 or -100 to 100.

Stochastics (27,3)
RSI (27)
CCI (27)
Momentum (27)

I know this has to be possible in AFL but I can't get it. Can someone help?

Cheers...

Have seen your post on TOS yahoo list. So here is the conversion using Williams %R.