PMDX-SmartBOB plugin support for probing functions, including the use of
a touch plate, were released over a year ago on 16 July 2015. You can
stay informed about our updates by subscribing to our support forum
announcements, or by visiting this web page:
http://www.pmdx.com/PMDX-SmartBOB-USB-Plug-InMach4 itself greatly improved support for probing with the release of
build 4.02.3233, but the default install does not yet include a classic
automated tool length offset function. Several folks have commented
on this and there may be code for it on the MachSupport forum.