I Bruce , I would like to add a dot on price ,when the close is 50% off the low of the total bar. And vice versa for off the high.  How would I do this in A CUSTOM  PCF INDICATOR ?

Well if you wanted to plot it at price (the close or current price), you could use the following Formula for being more than 50% of the bar above the low.

C / ABS(STOC1 > 50)

And the following Formula for being more than 50% of the bar below the high.

C / ABS(STOC1 < 50)

You would plot these in the same pane and scale as price using different colors. You could add a third color for being exactly at the midpoint.

C / ABS(STOC1 = 50)

I Bruce ,Sorry I am looking for it to be 50% off the low or the high of the total bar but to have a 50% of a tail , no boby in that 50% Sorry

Please try the following for above the low.

(O + C) / 2 / ABS(STOC1 > 50 AND 2 * O > H + L)

And the following for below the high.

(O + C) / 2 / ABS(STOC1 < 50 AND 2 * O < H + L)

Both indicators would be plotted using the a Custom PCF Indicator set to the Dots Plot Style in the same pane and scale as price.

Bruce perfect, Thank you

You're welcome.