"Copy as AppleScript" not working

[Christian Mittendorf]

Hello!

I started playing around with "Copy as AppleScript" and I found a 
problem with OG 3 Prof. I created 2 shapes and grouped them together. I 
then used "Copy as AppleScript" to copy the script to the Script Editor:

tell front document of application "OmniGraffle Professional"
	tell page 1
		make new shape at end of graphics with properties {origin:{89.175, 
172.175}, size:{172, 90}}
		make new shape at end of graphics with properties {origin:{89, 55}, 
size:{172, 90}}
		assemble ( graphics -2 through -1 )
	end tell
end tell

However, this script does compile but it does not run... OG does always 
complain about the "assemble" command. In OG 2 this command was called 
"group". Can anybody run this script without any error?

With kind regards
Christian