Helpmarker puts instructions specific to the Data Selector tool on the status bar.
It is internally called by Origin when starting the Data Selector tool or editing Data Selection Range Markers.
%A=$General.DataMarkHelp;doTool -h %A;doToolbox -next
The following script starts the Data Selector tool and internally calls helpmarker to display help on the Status Bar. A 2D graph should be the active window.