Okay, wasn't quite sure where to put this, but I ran across it during an Office365->Exchange OnLine Cloud Migration (which I'm currently in the middle of).
We've all had fun making fun of IE's InPrivate/Porno Mode feature ... but apparently it is actually useful if you need to log into multiple accounts simultaneously on a remote (Cloud) system. Especially if you want to do it without disturbing your own settings.
I'm experimenting with the Exchange OnLine Shared Calendars functionality trying to figure out the best way to export/map/replicate the client's current Google calendar maze (of like 25 highly populated calendars) into an Exchange shared calendar solution (suggestions welcome), when it occurred to me I needed to be several people at once on a single machine...and I didn't want to use VMs for reasons I don't want to go into.
So, I opened porno mode, and logged into the first users account. Opening a second porno mode window yielded a copy of the same session I had in the first window (damn). However...I discovered...If you go to File New Session in the first (porno mode) window the resulting second window is completely isolated from both the main browser settings, and the first porno mode windows session. Which allows you to logon simultaneously as a completely different user. So I'm now logged into the remote system as 3 entirely different users all from (and on) the same single desktop session.
Hay, maybe it's friggin obvious for some, but I figured what the hell ...(not the first time I looked foolish)... I'll give it a share and see what happens.
Oh and if anyone is wondering... I'm really liking - and am rather impressed with - this Exchange OnLine cloud thing.