I just figured this out last night, but anyway if any of you were wondering how to do shapes in toolbox 2.0,
1. Create a new box
2. Select the box and on the sidebar, there is a drop down menu that is set by default to "box"
3. Change that to "Shapebox"
4. Now right click the box on the sidebar and click "edit part"
5. Expand the "edit part" window
6. Make your shape! It's extremely easy and intuitive!