Here's how to add groups to an itinerary!
1. Click ...More and then select People
Click on the ...More button in the top left corner, to the right of Settings.
A drop down menu will appear, and you can select People next.
2. Click on Add a Contact
In the window that opens, click on Add a Contact on the right-hand side.
3. Type in the client's information
A menu will appear asking for the client's information. Put in their name and email address!
4. Click Add to Trip
This will add the user to the trip!
To remove clients from a trip just click on the red circle to the right of their name in the window!