Hi, I noticed that when two markers are placed on the same track and in the same frame I get a little plus icon showing me that there are multiple markers stacked on that frame. However, unless I move the markers to other frames I can only edit one of the stacked markers.

Is there a way to edit these stacked markers without having to move them?
Are the markers of the same type? If so, select them all (using a rectangle select) and you should be able to edit all of them at once.
They were all of different types. And even if they were of the same type, selecting many markers would bring up a single editor for the multiple markers, and while that is useful for editing all selected markers to the same values that is not what I need. I would need a way to edit the values of each marker separately.
Ideally I would like to cycle through the multiple markers (similarly to how multiple transitions can be edited in the animator controller) but since this doesn’t look to be the case at the moment I ended up creating a “mega marker” that combines all my previous markers into one.

That would be ideal. It’s the drawback of making markers as derived types - out of the box Unity requires multiple objects to be the same type for multi-edit inspectors.