In the Overview of the Client there is an option called "My machines". This is a customized type of selection, and it is up to each customer to determine what it should look like. To activate it go to the menu "Overview", see 1 in the picture below. Then go to the menu called "My machines", see 2. To add machines go to the drop-down menu to the right, see 3. To confirm that the right Overview is selected, see the name to the left, see 4.
To add/edit machines go to "Client" -> "Administration" -> "System settings" -> "Basic data" -> "Machines". This section has separate documentation, and covers machine parameters that is needed to set up new machines, and/or edit existing machines.
If the selection of "My machines" is empty, then use the Customization menu to add/remove columns, as seen in the picture below. Right-click on a column header, see 1, then select the menu called "Column chooser", see 2. A new menu called "Customization" will appear, and it is from here that you can add/remove columns to the overview of "My machines":
