You can start  in the following ways:Applications menuChoose System ToolsBoot.Command lineExecute the following command: boot-adminWhen you start , you will be prompted for the administrator password, this is necessary because the changes done with this tool will affect the whole system.After entering the administrator password, the following window is displayed. main windowShows  main window.The  main window contains the following elements:Images listThis is a list of the current options in your bootloader menu, beside the list there are buttons for adding new options, and modifying or deleting the already created ones.x"Starting your computer" sectionThis let's you specify the time that the bootloader menu will be displayed before running the default image.
