You can create a TEI and enroll that TEI to a program in one operation:
Open the Tracker Capture app.
In the organisation unit tree in the left hand pane, select an organisation unit.
Select a program.
Fill in the required information.
Click Save and continue or Save and add new.
Save and continue: completes the registration and opens the registered TEI's dashboard
Save and add new: completes the registration but stays on the same page. Use this option when you want to register and enroll one TEI after another without enter data.