Noob needing help getting started with imported thermostat

so I have Node-RED installed as an add-in in HA and and managed to get a few flows working - so far so good and I like where its heading…

I would like to use ultimate Node-RED Thermostat

I managed to import the flow and get this working on my system but that is where the trouble started as I tried to go too fast without understanding or knowledge and thinking I had mastered the beast installed a second instance for the other zone on my heating.

needless to say this resulted in everything going wrong and in my ignorant and failed attempts to fix it managed to break HA - so after starting from fresh and implementing a proper backup plan I am about ready to try again

I think the first problem is the way the thermostat is created on the dashboard is confusing things…can I import separate instances into separate tabs on the dashboard to solve this? there may also be variables that wont like being duplicated so I may have to dig deep to make this work

if anyone uses this thermostat and has already solved this I would greatly appreciate any tips or advice to reduce the learning curve