Plat Form Member

I have 2 question that I could not find its answer

  1. Do any one know what is the meaning of the key symbol that I have assigned in the attached figure?
  2. I have purchased 3D experience student license and my friend has purchased 3d experience engineering license, so does is effect our working collaboratively? Because I could not find him while I am trying to add him to a group, dashboard,..etc?

 

Edu 3DEXPERIENCE ENGINEER