What I’m trying to do

I’ve had previous happy experience, over a long time, with a command driven outliner (MaxThink in MS-DOS environment.) I am somewhat mystified about/challenged by organizing my notes and thinking by linking them. I would like to explore Obsidian’s outlining capabilities

Things I have tried

I’ve checked the help about outlining. There’s not much, e.g., “ The Outline plugin lists the headings in the active note.” I’ve also checked out forum posts on the topic. It’s clear that lots of people are doing outlining in Obsidian. I don’t get a sense of how to start. Suggestions appreciated.