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Customer Call Settings section
Navigate to Setup/App Setup/Customize/Activities/Event Page Layouts. Select the layout displayed to portatour® users of your organization and select Edit.
In the Layout Editor add a section for the portatour® Customer Call Settings. To do this, switch to the list of available fields for Visualforce Pages. Choose Section and drag it with the mouse to the desired location of the Layout. Enter 'Customer Call Settings' as Section Name, activate the checkbox Edit Page and select 1-Column as Layout. OK adds the new section.
Now choose from the list of available Visualforce Pages PTAppointmentCallSettingsEvent and drag it over with the mouse to the newly created Call Settings section. Press the Properties button which is located on the top right corner of the PTAppointmentCallSettingsEvent Visualforce page. Set the Height (in pixels) to 120 and click OK:
Save the Page Layout and repeat the configuration steps for all other Events-Page Layouts that are visible to portatour® users.