Learning Calterm etc

[Mrkentee]

Well, I had someone that was going to show me, but it was late, and I was on the road and had to get to sleep. I asked for a rain check, and they said ok. But now I get no response, so I guess I missed my one chance.
Would anyone be able to get me started, or point me in the right direction? I don’t want to become a tuner. I just want to know the basics, mostly to program a new ecm if need be.
Thanks