You can create new Issues from the Project
Go the Issues menu on the left hand side 
Click + New

This will give you a version of the Overview tab to start adding some information:

Details

• Alias *Usually system generated, depending on settings under Admin > Configuration > Company Preferences > Automatic Alias
• Name of the Risk
• User Responsible
• Priority
• Complexity
• Target Date
• Tags
• Share with Stakeholder?
• Description

Once you click OK at the bottom of the screen to create the Issue, you will be taken back to the full view of the Overview tab.