I have 2 commands and 4 parameters.
In the search screen i am looking for a drop down option like below

Report Type Product
Product Family

If the first is selected (ie product) i want the parameters to work on 1st command
if the second is selected (ie product family) i want the parameters to work on 2nd command

I have something like below but it  does not seem to be working

If {parameter}=" Report Type Product" then Command1.field= {parameter} else
if {parameter}= " Product Family" then Command2.fiedl= {parameter}