To add new cages, click Add from the menu at the top-right of the page. A list of options will appear:

Quick create cages

This allows you to simply add an empty cage with no extra information to your study.

Create cages with animals

Select this to add multiple cages and animals simultaneously while adding metadata to each.

Assign cages from Colony

Choose this option to add cages to your study which have previously been added to the Colony section.