If you are using a profile based on the PMDX-Sample profile that is (optionally) installed with the PMDX-SmartBOB plug-in, then the M6 macro is not there (an oversight on my part). You can copy the m6.mcs file from:
C:\Mach4Hobby\Profiles\Mach4Mill\Macros\m6.mcs
into the "Macros" sub-directory in your current profile. For example, if you are using the PMDX-Sample, copy it to:
C:\Mach4Hobby\Profiles\PMDX-Sample\Macros\m6.mcs
You may optionally also copy the "m6.mcc" file. But if you don't, Mach4 will create it the next time it runs. The "mcc" file is the compiled version of the "mcs" file.
CAUTION: **IF** you are using the PMDX-Sample profile, please copy it to a new profile name. A future version of our installer *MAY* overwrite that directory (though we will always give you a warning before we do it). To copy the profile, start the Mach4 loader, click once on the PMDX-Sample then click on the "Copy Profile" button. Give it a new name. You can leave the "Screen Set" field blank and it will keep the existing screen set.