Within Course Reserves (Leganto) inside Blackboard, you may notice the Collections section.
This is a place where you can store various sources and items for your own use, or later inclusion into various course Lists as you see fit.
It can be thought of as a holding area or dumping ground for items to keep at the ready for use.
Adding items to your Collection can be done by the same means as adding items to your Lists. Searching the University Libraries' materials, the Cite It! Bookmarklet, or adding items manually.
Once an item is added to your Collection you can then add it to an existing List as seen below.