Yes, It's possible.
Step 1:
Create "Dynamic Parameter" as "Number" as Value and "Name" as Description on the Main report and call the Parameter on the main report.
Step 2:
Create one Subreport for showing "Name". This subreport for dedicated to show "Name" only. put query like "Select number, name from table"
Step3:
Create one "Static parameter" for "Number" in the Subreport
Step4:
Call the subreport in the main report and
Map Mainreport and subreport for that "number" field.
Step 5
Add "Select Expert" for that number field on the sub report.
example:
"{Command.number} = {?Pm-?Select - number}"
Step6:
Place the "Name" field on the sub report and run the main report.
Select few names from the parameter and it will pass the "number" to subreport and the subreport will match with that and will show the name.
i hope, it will help you.
Regards
Pandian