Can I use it offline? My wife installed it a long time ago and never signed up for an account. Back then offline usage seemed to be possible. I copied her profi

Can I use it offline? My wife installed it a long time ago and never signed up for an account. Back then offline usage seemed to be possible. I copied her profile to her new laptop and it never required signing up which is great (why on earth would she put her literature database in the internet??? The tool shall just index the papers on her harddrive). When I wanted to install Mendeley desktop for my brother, it was impossible to start it without an account. Is that on purpose? Can it be skipped? I just backuped a fresh download before Mendeley gets modified more, but I wonder whether I have to take her profile to seed a new computer so that it gets running without internet access. Of course it's quite obvious that Mendeley or Elsevier have no interest in supporting anybody who wants to just USE the programm, instead this social stuff shall be pushed...