I don't know if it possible, but it would be great if it's possible to store user information in the plexconnect settings to make it possible to use all the new cool multiuser functions like:
Now Playing
track watched/unwatched on user level
user can select audio/subtitle
To take advantage of all the multiuser functions for a local network, authentication in PMS setting (myPlex, show advanced) has to be checked.
Without user id and password there will be no response from Plex Media Server when trying to connect to PlexConnect, se this post
I have multiple Plex media servers in my house, will PlexConnect work?: Yes (but you may have to specify which PMS to use (see advanced settings guide). You may also need to go to PlexMedia Server web -> Settings -> myPlex and uncheck "Require authentication on local networks" if you find you have problems - at least until MyPlex support is added).