Cross Report drillthrough using a button action

I have a report page from which i would like to drill through to a page in another report in the same workspace. when i set up the cross report drill through steps it shows the destination when i click on a cell and right click and select Drill Through. However to make it easy for users we have created buttons with drill through action to drill through to the destination pages. How can cross report drill through be performed in this case as the destination page does not appear in the action when we select drill through.

secondly, we use conditional drill through using measures to take users to different report pages based on the field values selected, how can this be performed for cross report drill through?