Preconditions:

At least 1 page added to the shop

1. Select your page
2. Click '+ insert' button from top of the page design panel
3. Add a shape eg 'rectangle'
4. Click Zoom button in top left corner of the design panel
5. Change the zoom value by using the range selector
6. Click 'Fit' button
7. Repeat step 4
8. select one of the predefiend zoom options eg. 50%