I haven’t tested it yet, but the new version of the software is supposed to be able to pull a temporary network config off a USB stick. You could setup the stick to put it into AP mode, or to configure it for the network you are visiting.
Thus rendering it completely useless most of the time! If you could remember to plug it in and change the configuration, then why didn't you just change the configuration? There's already a quick wifi page in the webui which takes pretty much the same amount of time. Adding profiles just adds another layer of complexity and requires more code. Mostly the problem with this is that it doesn't solve the problem of showing up somewhere with your HeaterMeter in the wrong configuration and you being stuck.That would work as long as you remember to change configs before you leave the active network...