You just need to install MSM version 2.3.12 or later
from MSM release note.
V2.3.12
First release with Santa Cruz Engineering ATC support.
7.7 V2.3.13 (Beta)
Added hook support for a user M6PostATLO2 script.
This is a new script hook in addition to the M6PreATLO script, same conventions, placement in the profile directory etc..
M6PostATLO2 is called immediately after the ATLO tool measurement is completed but not until the spindle has returned to the TCP.
7.8 V2.3.14 (Production Release)
Released user M6PostATLO2 script support.