Use the Tab-Order tab to define the tab-order (trail) of dashboard objects, or to add or remove dashboard objects from the tab-order. The default tab-order is the order in which objects were added to the dashboard content area.
Tab-order is defined from top to bottom. Initial focus is placed on the asterisked object listed first in the tab-order definition. Each toggle between Run and Design modes returns the focus to the first asterisked object.
Tab-order includes disabled and invisible dashboard objects and overrides Enable and Visible properties settings. You need to determine whether you want to include disabled or invisible objects in your tab-order definition.
The names of objects deleted from dashboard sections are removed from the tab-order definition. However, the order of other objects is preserved. For example, if the tab order is CommandButton, then RadioButton, then CheckBox, then DropDown, and RadioButton is deleted, the tab order is CommandButton, then CheckBox, then DropDown.