Open a company profile by Navigating to Menu > Companies.
Click on a company name and select "See full Profile".
To access more information about the officers, including ceased officers, click on the "View" drop-down box and select "Officers".
This will give you information about the existing officer and also the ceased officers (provided the changes in officeholder were prepared on Corporate Messenger or the historical data has been imported into Corporate Messenger).
For more information about importing historical data, you can contact firstname.lastname@example.org.