Click on "Schedule" in the main menu.
As standard each day has a column and each user has a row.
To add a single shift click on an empty box, fill in the shift details and press "Save"/"Book".
To book an available shift located in the row "-Blank-" you click on your chosen shift, go into the tab "Book", check the box next to the name of the person you wish to book and click on "Book". You can also drag the shift in the schedule to the person you wish to book.
To book multiple available shifts at once you click on "Select shifts" at the top right corner and choose the shifts you want to book by simply clicking on them. Then right-click any of the selected shifts, press "Selected shifts" >> "Booking tool". Check the boxes next to the names of the people you wish to book and click on "Book".