You can save events built in an itinerary straight to your Library. Here's how!
1. Go to the Event
Go to the Event in the itinerary you'd like to save.
2. Edit the Event
Click on the pencil icon that appears in the top right corner of the Event when you hover your mouse on the Event
2. Click the More(...) button
Clicking on the button with the ellipsis next to Done Editing. This will bring up a few options:
Duplicate
Save to Library
Delete
3. Click on Save to Library
4. Save to Library
You'll be presented with the option to add a label to help organize your library, but a label is not required to save an event to your library.