Event List Editor
From Mario Fan Games Galaxy Wiki
Event List Editor as seen in MMF2
The Event List Editor is one of the editors used for Click coding. It is similar to the Event Editor, but it is not based on a grid. For some, programming this way is easier, since it more closely follows event execution order than does the Event Editor. Possible in this editor but not in the Event Editor is the ability to rearrange actions, which sometimes needs to be done.
Action Editor
The Action Editor is similar to the Event List Editor, but instead of showing all of the conditions and actions of the frame, it only shows the actions for a single event. It is usually more convenient and cleaner to use this editor instead of the Event List Editor to rearrange actions.