Hi ,
This can be done, Firest we need to fing the action name for this copy and pate action.
if ActiveModuel = "Test Plan"
if ActionName = "PasteAct" then---->Find the correct action name'
set TestFact = TDConnection.TestSetFactory
set TestList = TSF.NewList("")
here you can assign values to the field
ActionCanExecute = false
end if
end if