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Setup a TPO chart to show at least 2 days of profiles.  Using any of the 12 reference lines, setup one of them similar to what you see below.

Each time the TPO chart calculates when a new tick comes in, the following V# variables will be set with the line values seen below.
 

V#	Line
V#10	DPOC
V#11	DVAH
V#12	DVAL
V#13	DIBH
V#14	DIBL
V#15	POC
V#16	VAH
V#17	VAL
V#18	IBH
V#19	IBL

The V# variable is arbritrary.  It's not required to use V#10.  If you use V#2, then V#2 through V#11 will be set to values above, in same order.  If V#31 is used, V#31 through V#40 will get set, etc.

In order to set with Volume-based values (POC &VA) instead of TPO-based values, use "=ALLv" instead of "=ALL".

You may also set values individually using the following reference line labels.
 

Reference Line Label	Represents
=DPOC	Developing Point of Control
=DVAH	Developing Value Area High
=DVAL	Developing Value Area Low
=DPOCv	Developing Volume-based POC
=DVAHv	Developing Volume-based VAH
=DVALv	Developing Volume-based VAL
=DIBH	Developing Initial Balance High
=DIBL	Developing Initial Balance Low
=DIBH1.5	150% Developing Initial Balance High
=DIBL1.5	150% Developing Initial Balance Low
=DIBH2	200% Developing Initial Balance High
=DIBL2	200% Developing Initial Balance Low
=DIBH3	300% Developing Initial Balance High
=DIBL3	300% Developing Initial Balance Low
=POC	Point of Control
=VAH	Value Area High
=VAL	Value Area Low
=POCv	Volume-based POC
=VAHv	Volume-based VAH
=VALv	Volume-based VAL
=IBH	Initial Balance High
=IBL	Initial Balance Low
=ORH	Opening Range High (current)
=ORL	Opening Range Low (current)
=CL	Previous Profiles Close
=OP	Previous Profiles Open
=HI	Previous Profiles High
=LO	Previous Profiles Low
=DCL	Profile Close (current)
=DOP	Profile Open (current)
=DHI	Profile High (current)
=DLO	Profile Low (current)
=ALLDIB	Developing Initial Balance High
...uses 8 consecutive V#s	Developing Initial Balance Low
...similar to =ALL	150% Developing Initial Balance High
	150% Developing Initial Balance Low
	200% Developing Initial Balance High
	200% Developing Initial Balance Low
	300% Developing Initial Balance High
	300% Developing Initial Balance Low

Once you've setup your TPO chart properly to send your line values into the appropriate V# variables, you can then add reference lines to bar or candle charts, and setup the reference lines to "Use V#".  These V#-based reference lines should update throughout the day as the respective developing TPO lines change.