I've sent a pull request to allow remote management. The idea is that you add port forward to the miners in your router and use this address in the remote host port configuration while you add the miner. The webapp will still be running in the LAN and be able to connect to the RPC ports of the miners and you would be able to access the miners remotely to do anything.
Hi there,
First of all thank you for taking the time to contributing to my little project, I really appreciate it.
I saw your pull request but didn't had the time to reply earlier. I will reply to you at Github !!!