FAQ: How can I merge multiple Viewing Sessions?

[SR-SUPPORT]

For any given experiment, it's best to import all your participants' data (EDF files) into a single Viewing Session rather than spreading them across multiple sessions.

This approach allows you to use powerful features like aggregate views and reports that analyze data across all participants at once. You can still generate individual reports by selecting the Create one report per EDF option when exporting.

How to Merge Viewing Sessions
If you've saved each participant in a separate session, you can easily merge them into your currently open session.

1. From the main menu, go to File > Merge Viewing Session....
   
2. Navigate to and select the .evs file for the session you want to merge.
   
3. Click Open.
   

What Happens During a Merge
When you merge sessions, it's important to know what information is kept from the old session and what is adopted from the current one.

• Preserved from the merged session:
  • All data-level adjustments (e.g., cleaning, moving, or merging fixations).
    
  • Interest Areas and any linked images or videos.
    
• Adopted from the current active session:
  • Session preferences and Interest Period configurations.
    
  • Report variable selections.
    

Pro Tip: If you need to transfer settings from an old session, you can export its preferences and then import them into your new, merged session. See Section 8 of the Data Viewer User Manual for details.