If you look in your Datacad's Help folder (Ex: C:\DataCAD xx\Help\) there should be a 'DataCAD Softlock Reference.pdf' file that should have all of the instructions you need. It is also available from the Datacad Support, Downloads webpage here. https://www.datacad.com/download/index.html
Thanks! - Josh Do. Or do not. There is no try. Josh's Digital Downloads is come back online soon. Stay tuned. (soon is a relative term)