Create a UML Use Case Diagram for object creation in Blender.$$

This diagram should include at least three individual objects, such as a cube, plane, and cone. There are many others to choose from.

$2)$ Create a UML Sequence Diagram, showing the flow of control $($sequence of function calls$)$ for a mesh operator in Blender.

You will need to select a mesh editing operation in Blender $($such as face selection, bevel, etc.$).$ The best way to find out the sequence of function calls is to determine where processing is done on mesh data in Blender, set a breakpoint there, run Blender in a debugger, and then construct the sequence diagram from the call stack. Again, seek help from developers on blender chat.