Select 2x2 Matrix from the Braintorming & Ideation category under New Document on the dashboard.
You can change the description of each quadrant by clicking in the label field and typing.
Drag and drop sticky notes from the docked library to add content to each quadrant.
You can continue to drag sticky notes or use the arrows around any existing sticky notes to add more. The matrix will automatically grow and expand to accommodate your content.
Change the color of any shape or cell using the Fill color options on the Home tab. Click to select it and choose a new fill color or style.