This variable enables the user to change the text of a tree-view item. When this variable is set to "1" (on, true, yes) you can change the value of the tree-view item by clicking it with the mouse (just like with Windows Explorer). When the variable is set to "0" (off, false, no) text changes are not allowed. The default value of TV_EDITLABELS is "0".
To keep track of the changes, two additional messages are generated from the tree-view to the COBOL program: MSG_TV_BEGINEDITLABEL and MSG_TV_ENDEDITLABEL.