passing parameter to command objects

[back2tek]

Hi All,
I am trying to avoid subreport by using add command feature in CR9.
I have a main report that has 2 date parameters (From Date) & (to_date).
I added 2 command objects using 'add command' that pull summary data from 2 diffrent other tables.
The idea is to link the main report to the command objects using the 2 date param (From Date) & (to_date);
I am trying to pass the same 2 parameters in the main report to the command objects. If I try to create the parameter inside the command object,
I will end up with 2 parameters for every command + plus the main report parameter.
How to resolve this?

Thank you all
Sami