Specify an expression item parameter
For more information, see Expression item and Parameters.
For the relevant filter, Edit a filter.
On an existing expression item in a filter, click Constant/Parameter.
The field containing the expression item's constant value is replaced by a Value Of Parameter dropdown.
Go to the Parameters tab.
Click Add Parameter.
Enter a parameter Name and Type.
If you selected
input
for the Type, select a Data Type and enter a Default Value.If you selected
variable
for the Type, select a Variable Name.
The new parameter's name is listed in the Value of Parameter dropdown. Select it.
Click Save.
Optional: To revert an expression item back to a constant value, click Parameter/Constant and then click Save.