CTRLMBUTTON system variable

Middle Button Click

The CTRLMBUTTON system variable turns On or Off the Temporary tracking points entity snap when the middle mouse button (mouse wheel) is used during a command.

  • If CTRLMBUTTON is set to 1 for ON, pressing the middle mouse button during a command runs the TK transparent shortcut and prompts you in the Command line to specify the temporary tracking points. This is the default option.
  • If CTRLMBUTTON is set to 0 for OFf, the system variable turns Off the Temporary tracking points entity snap using the middle mouse button.
Note: This system variable is only available on the Command line.