While previewing multiple Guides on the URL, they won't show up simultaneously, and their order of appearance is unpredictable.

To manage that, you can use the display priority options. You can order your Guides from the highest priority to the lowest.

Another option is to create a user segment to specify that you'd like, for example, to show Guide B only to users who have seen or completed Guide A.

Alternatively, you can add and organize your Guides within a Checklist or a Resource Center to let your end-users trigger them through these widgets.