the screenshare tool is for ... sharing your screen .
Using that tool will allow you to present in real-time what you do on your PC to a group of session attendees.
The basic principle is:
- A group of people has that tool installed on each of their PCs
- One of them wants to present sth and invites the others to join a session (best thru a phone conference)
- The presenter opens the session with his screenshare tool, giving him a session key to be shared with the others
- The session attendees enter that session key in their screenshare tool enabling them to see what the presenter is doing on his screen
This is a perfect tool for product demonstrations, live tutorials and the like.