Remember that you can and should promote reviewers and editors to Senior Reviewer and Senior Editor from time to time. The system treats Reviewers and Senior Reviewers the same in terms of their roles and duties; the difference is the prestige. On the public website, the word “Senior” is shown on the Board Member page, for example, https://www.informingscience.org/Journals/IJDS/BoardMembers. On the colleague’s dashboard, the title shows where the role is displayed. (The same is true for Editor and Senior Editor.)

You need to mentor those you promote. Reading the manual is a good start, but for the first few assignments, your job is to monitor the new editor (or AEiC) closely until this initial training has been completed. Then promote the associate editor to full editor. You can do this if you want to stay on as EiC and share the load.