When a practitioner's plan is set up in n1lab, your second tab says Plan. Trials is still there. It has moved into More.
Without a plan, the tabs are Today, Trials and More.

- Today
- Trials
- More
With a plan, the tabs are Today, Plan and More, and Trials is inside More.

- Today
- Plan
- More
- Trials, inside More
Your trials and their records are the same either way. Only the place you open them from changes.