Anyone know how to change the colour of a single volume bar when it break above a certain level?
So if my average volume bar is 350 but anything that breaks above 450 must be a different colour.

Thanks.

Try this:
1. Add the Color Bar Based On Alert Condition study
- Set the 'Based On' to the Volume study
- Set the 'Chart Region' to the same as the Volume's
- Set the 'Output When Condition True' to 'Use Input Data'
- Set the 'Input Data' to Volume
- On the Subgraphs tab, set the Draw Style of SG1 to Bar
- Set the Color to the 'above 450' color
- On the Alerts tab, use this formula: =V>450
2. Add another instance of the Color Bar Based On Alert Condition study
- Set the 'Based On' to the Volume study
- Set the 'Chart Region' to the same as the Volume's
- Set the 'Output When Condition True' to 'Use Input Data'
- Set the 'Input Data' to Volume
- On the Subgraphs tab, set the Draw Style of SG1 to Bar
- Set the Color to the 'below 450' color
- On the Alerts tab, use this formula: =V<=450
3. Hide the Volume study.

If you want the coloring to be n volume above the average, the formulas would need to reference the average study.