Sidebar
The Sidebar will allow you to quickly access your contacts and their details, your communications history with a specific contact, list of tasks that you planned to do and a list of attachments exchanged between you and specific contacts.
There are five sections that make up the Sidebar: Contact Details, Agenda, Invitations, Chat and Calendar.
Side bar is visible on the right side panel of Desktop Client.
You can hide the Sidebar by clicking on the arrow near the right edge of the bar.