Simultaneous work

is there any way to be in the same Cospaces with other users, as simultaneous work
and if we can do that by group assignment if the two user play the scene, are they can be simultaneous after they played the Cospaces ?

Yes, is posible to assign a cospaces for a group of pupils, but I suggest you is to work in different scenes, because if someone makes a misteke and moves something, is gonna move for everyone.

To the second question, there’s not multiplayer jet in CoSpace EDU. If both click play, they will run separate games.