It is possible to have read access to all tickets that are being submitted on your company's behalf however, it is something that needs to be turned on by FCS (at no additional charge) and requested by a decision-maker within your organization.
This will allow you to view but not interact with tickets that were created by people other than yourself on your company's behalf. You are of course able to interact with tickets that you have created.
Step 1 - Login to the Support Center using the user you created following this Knowledge Base article - Creating your support portal user for FCS
Step 2 - Click the dropdown menu next to your user name and click "My activities"
Step 3 - You will be taken to a page where you can review your Requests, as well as any Requests that you have been CC'd on, in any status
**It's important to remember that you will only be able to respond to tickets that you have created or been CC'd on. All other tickets that were not created by you or you were not CC'd on you will have read-only access.