Begin by creating a new assignment. Next, click on "Generate Assignment Ideas"

Select the number of ideas to generate and (optionally), the tone/audience and what level of Bloom's Taxonomy the assignment will align to. Also select which pieces of content in the module you'd like Lumi to "read" then click on the blue "Generate" button.

Select one idea from the list then the blue "Insert" button:

Edit your assignment's title, point value, settings, etc and click the blue "Save and Close" button when finished.