want to display "sales order" report for a particular ledger by clicking button. How can I?

Hi all,
I want to display "sales order" report for a particular ledger, say "amarjeet" by clicking button.

[Button:cancelSale]

Title:"Cancel Booking"
Key:f12
Scope:Selected Lines
Inactive:not ($$NumLinesInScope:SelectedLines =1)

ActionEx:b:Modify Variables:Item Sales Orders
ActionEx:setstockitem:set:StockItemName:$$CollectionField:$mpotype:1:collxnposelected
ActionEx:setledgername:Set:ledgerName:$$CollectionField:$mponame:1:collxnposelected

ActionEx:setdisplayordersisplay:Sales Orders


mpotype,mponame is by selected lines
but this is not working.
please help

Thanks