The Gtol Elbow shortcut menu appears when you right-click a datum feature symbol that is attached to a GTOL.

When the Gtol Elbow check box is not selected, the datum feature symbol attachment changes to the upper side of the GTOL in such a way that the datum feature symbol label compartment is located above the GTOL frame.

When the Gtol Elbow check box is selected, the datum feature symbol attachment changes to the middle point of the GTOL elbow and the datum feature symbol label compartment is located above the elbow.