To create a meeting with one or more contacts in the List of contacts, do the following:
1.Choose one or more contacts in the List of contacts by clicking on their avatars.
2.Click on the Toolbar of the List of contacts.
To create a meeting with a contact open in the Reading pane, click the button Create event on the Toolbar.
In both cases, a new browser tab will open the page Calendar with an open window creating a new event, in which the selected contacts will be listed as event participants.