[Craig]

Newbie questions:

1) How would I script setting flagged status to all of the visible actions in a given (content-view) perspective?

2) How would I select all visible actions and copy to clipboard?

You could begin by experimenting with code like:

tell application "OmniFocus"
	repeat with oLeaf in leaves of content of window 1
		set oTask to value of oLeaf
		try
			set flagged of oTask to true
		end try
	end repeat
end tell

and

tell application "OmniFocus"
	-- select leaves of content of window 1
	pbcopy leaves of content of window 1
end tell

[Craig]

Just what I needed - thanks a bunch, RobTrew!