Yeah, that help menu could be improved. The 'o' to enter "order mode" is listed under the map control commands, but it would help to simply add it directly into the relevant commands in the multiconsole area as well. That'll be in there for the next release, thanks.
(Edit: I see in the source it was originally more clear about the mode, but there wasn't enough room to fit all the commands I wanted so I had temporarily removed some indicators there... At the time there was no precedent for listing of sequenced commands, but now we have things like detach-drop as Shobalk points out, so I'll just use that method.)