Dynamically Change RowScope Value

Hello,

We're experiencing an issue where when we do a price override on a warrant line item, the Dynamic Pricing Procedure Workflow (WF) quicks in and reset the value to 0.00. After investigation, we found out that the WF only evaluates that "Warranty" line item to make the calculation instead of using all the line items. The Signal that  is raised to call the WF is the SetFieldValue.

We would like to dynamically change the value of the RowScope in SetFieldValue signal from Dynamic Pricing Procedure WF without having to modify the signal itself. Currently, the RowScope = Current

In other words, we're trying to do this: