How to expose new commands to MQTT Climate integration

hello, I’m currently using my (infamous) Samsung 2878 HVACs via this project https://github.com/gsasha/hvac_ip_mqtt_bridge/ that controls the ACs via MQTT
I made some changes to the code to support a couple of new commands (the purify mode and the swing mode support) but according to documentation:
MQTT HVAC - Home Assistant
only some command are usable (like swing mode) with that integration, so any way to add more?
or a way to configure topics as single entities?