The editor offers a brand-new addon – Number Line, which allows users to set and draw the x-axis ranges.
To make the addon work, it is necessary to provide the relevant values in the addon’s Properties side menu. The “Min” and “Max” sections enable to set the minimum and maximum values on the x-axis, while the “Ranges” property allows to establish its correct ranges.
A full addon’s description is available here. If you wish to view a short demo presentation, click on this link.