I saw a question in the chaoshelper thread that asked about using the various "npcs" that can be either a npc or a portal, or portals that are actually npcs. I wrote this a while ago, but after seeing that (it was from april or sometime earlier this year), I decided to extract that section out of my meta and post it here.
The usage is simple. Get your army or whatever close to the item, and type "/f !usethis" it will then issue a "!usenearest ##" based on the object class that you have selected, which your army will react off of. This way, it doesn't matter if the Olthoi statue is a npc or a portal, the command will send your guys through.
Just something stupidly easy that I thought people could use..