Outlining in this context means to break up a bigger structure in smaller parts. Like break a document up into each individual paragraph, or sourcecode into fun

Outlining in this context means to break up a bigger structure in smaller parts. Like break a document up into each individual paragraph, or sourcecode into functions. Each smaller part is then available to be handled in (semi)programatic ways. For example, you can link one part to appear on multiple locations of the document. Or you can write a script which filters the parts and rearranges them in your desired structure. The point of something like leo editor is to have theoretically a unified way to do all that.