How do I configure Armory to use a custom bitcoind host:port?

[NotATether]

For compatibility reasons I must run Armory on Windows, however this spawns the localhost bitcoind that's installed there and starts downloading the entire blockchain, and there's not enough space on my disk to download it on that particular box so I want Armory to query one of my other nodes that already has a full node running.

Is there a setting in a config file somewhere to set this? From command-line output I know that Armory passes these as arguments to the bitcoind that it starts.

[goatpig]

however this spawns the localhost

Disable auto-bitcoind in the Files menu in ArmoryQt.

I want Armory to query one of my other nodes that already has a full node running.

You need to run ArmoryDB there and remotely connect the client to that. ArmoryDB needs access to the blockchain files on disk. It's simpler to run it along Core and SSH tunnel the port the client connects to.