Original Post Date:  December 2010

To determine, and set, options in the tool settings box, use the set item keyin.  For example, let's suppose you want a keyin to turn on or off the Join Elements  option found with the Place SmartLine tool.

Ensure the tool is started, then key in set item toolsettings.  When the key-in dialog is expanded, the fourth column will show a set of named variables for the active tool. 

 

You can then set those variables by adding =value to the end of the keyin.  For example, to turn the Join Elements option off, the keyin would be set item toolsettings join=0 and to turn it on the keyin is set item toolsettings join=1

You can use these keyins in your scripts, macros, and when you're creating custom buttons or tools.