You can edit shared variables manually, programmatically, or manually in groups. To delete a shared variable, right-click the shared variable in the Project Explorer window and select Remove from the shortcut menu.
Right-click a shared variable in the Project Explorer window and select Properties from the shortcut menu to display the Shared Variable Properties dialog box.
Use the SharedVariableIO properties to edit the shared variable configuration programmatically. Editing a shared variable programmatically is helpful when displaying engineering units, scales, and other information about the shared variable or when changing a shared variable from off scan to on scan.
Use the Multiple Variable Editor window to edit a group of shared variables. You can edit shared variable properties, such as logging options, alarming options, and scaling options, for a large number of shared variables.