The artifact is complex and difficult to learn, but will be used again by the same user or by others. This is common in Sovereign Posture artifacts, especially ones that are used infrequently. The artifact's designer cannot possibly predict all the context or information needed for it to be used most effectively by certain users.
Users get a sense of ownership and control over the artifact by modifying it.
The proper spatial placement of help text can increase its effectiveness. Support ways for users to add their own comments and other annotations to the artifact. Allow the users to place those annotations physically close to where they are needed, and if possible, allow for simple drawings in addition to text. Let users write private comments, for their own eyes only, and also let them write public ones that other users can read. Save the annotations from session to session, as a part of the artifact's Remembered State .