Affiliation, I don't list that. Accomplishments are a different story.
Going through the line is a formal process with mentoring and being mentored, formal class work on both leadership and administration. To get better management training you'd need at least an Associates in Business Administration. Plus going through the line is on-the-job management experience in non-profit organizations.
Let's say you where the first organizer of a lodge event that eventually turned into an annual tradition. That's an accomplishment bullet for event creation, organization, maintenance and delegation.