How to add a reference line in trend chart

[abc_18]

Hi,

In my application I have one trend chart with drill down capabilities, in this chart I need to show reference line for target value that is based on priority.

I have added reference line under presentation tab.

how to make that reference line visible only on third level of hierarchy that is priority value??

Hierarchy is like

Domain

Track

Priority

Please suggest..

[vinieme12]

Not in Reference line , but define a  NEW EXPRESSION as Conditional  to check if the Priority field is in scope

[abc_18]

Hi Guys,

Thanks all for your help, I might be missing something, I tried all expressions as suggested in my application,

but still not getting proper result.

I am attaching sample qvw file herewith, Please help me out.