Applescript - System events - Set default location for "open file" popup window
===

Im using system events to control a program that does not have a applescript library. 
I am therefor using system events to control it. 

I have gotten the program to open a pop up window for it Open File interface and I would like to get it to default to a certain location. Is this possible.
So Far I have :

    tell application "App Name"
	activate
    end tell
    tell application "System Events"
	tell process "App Name"
		tell menu bar 1
			tell menu bar item "File"
				tell menu "File"
					tell menu item "Import"
						tell menu "Import"
							click menu item "XML..."
							delay 4
							
						end tell
					end tell
				end tell
			end tell
		end tell
	end tell
    end tell

The pop up window defaults to its own last visited location. I would like it to default to a given file path like /Users/userabc/Documents/abcd.XML

Thanks
