You could transfer a call to "Gathered Digits" from the caller, but that's really only sending them to a two digit destination, not option "11" from a menu.
At that point you're better off with nested menus because option "1" is likely to get more than its fair share of calls due to timeouts on entering 1-0, 1-1, 1-2, etc.
And if you're an impatient caller like me, I'm mashing 0 for a person by option 6 anyway.