To create more complex designs after sketching a shape or placing a primitive, you can use several contextual tools to modify your geometry. These operations include Tilt, Array, and Copy and Paste.
To tilt a face:
Select a face and right-click to see the context menu.
Choose the Tilt icon from the context menu.
Define the tilt axis by drawing a line.
Click a third point to start the tilt operation.
If you hover over a face and notice dotted lines, this means the face is made up of smaller faces due to the face being warped. To turn the dotted lines into model edges:
Select the face or object that you want to change and right-click to see the context menu.
From the context menu, choose the Facet Smooth Faces tool.
Edges are automatically added where the face was previously smooth.
This command works in the opposite way, also: you can select faces that are faceted and select the Facet Smooth Faces tool from the context menu to hide the edges and make the faces appear smooth.