Collaborative workspaces are available from the training's main page (in case your administrator enabled that feature). It looks as below.
On the left part on the interface, and on the right one you have the workspace are, allowing to interact with all the other participants.
This basically offers a high level of interaction, and much more than just sharing messages.
You can add files, share todo lists, and whiteboard with the other participants, by clicking on the bottom left on the + pictogram:
When loading an image, this tools makes possible to add annotations (text, lines) and save the annotated version, making it available for the other members of the workspace, and making possible to download this annotated file.
Same with a dashboard, you can add your text and drawings, and then save it so that it is available for the other participants, and possible to be downloaded.
When creating to-do tasks, you can set due dates for each of them, assign them to other participants, so that it can be very helpful to organize group projects.
If chat and file sharing is not sufficient, you can have a live meeting with the other participants to discuss even more interactively.
By clicking on the phone pictogram on the top right, you can start a live meeting.
The other participants can simply join the live meeting that you started by clicking on the "Join" button that appears in the chat.
The live meeting window looks as below. It makes possible to share screen, share files (like Powerpoint presentations), use a pointer to emphasize some part on these files, to annotate files (making annotations visible for all participants).
Live meetings can be recorded, and will then be available in the Documents library of the participants.
At the end of the meeting, simply click on the button at the top right: "End"
Creating a new workspace
Depending on the permissions set by your platform administrator, you can find on the left bar a button allowing to create a new collaborative workspace.
You just have to enter a name for it and then save.
Your new workspace will appear.
By clicking on that button, you can see the members of that workspace
To add new participants, just click on the "Edit" pictogram at the right side of the workspace in the list
Then select new participants by moving them from the left box to the right one, and save.