When checked, the user must hold the shift-key in order to make multiple selections when building a list of entities to edit using any of the CAD > Edit commands. If the shift-key is not held down, the edit command will be automatically executed after the first selection.
When not checked, the edit command will not be automatically executed. Once the list of entities is complete, the user must either:
•pick any of the edit buttons,
execute the highlighted function,
•double click on any vertex to execute the highlighted function,
•or right click for a list of options.