Menu: View→Object Properties→Visibility→Show name
Uncheck this box to hide a variable's name. The state of this box has no effect on the display of parameters, or of rectangles, ellipses and arrows.
Note: When the Use visibility settings box is unchecked, the state of the Show name box is ignored -- no parts of the path diagram are hidden.
See also:
Hiding objects, names and parameters
Programming
In Amos Graphics programs, you can put a check mark in this check box by using the following statement (Visual Basic):
pd.GetCheckBox("ObjectPropertiesForm", "CheckVisible_Name").Checked = True