Proper way to add packman?

There a different ways to add a repository with different flags for autorefresh, GPG check, priority and many others.
You should start to study the man pages of zypper when you want to know what as example the -cfp 90 means. There is also mentioned what the difference of p and r in the GPG check column means…

But as already said by Malcolm, the codeline you mentioned in your first post is from the SDB and correct.