Yes, basically you would have to recreate the activation process to compute all the thresholds from the rules for all hosts and services.
The export script is here: check_mk_extensions/helper/bin/showrules.py at cmk2.2 · HeinleinSupport/check_mk_extensions · GitHub
It needs our API wrapper: check_mk_extensions/check_mk_api at cmk2.2 · HeinleinSupport/check_mk_extensions · GitHub