I have another suggestion! Maybe add a feature to change events all at once. Here’s how it could work:
You select 2 or more events, they must have the same type of object in the events. For example:
Create object [Object 1] at position [X], [Y]
Change the animation frame of [Object 1]: set to [Number]
These two events have the same object. Right click on one of the events, then select the available objects to change. [Object 1] is available as it is in both events. Select your new object to replace it with. Events should now look like this:
Create object [Object 2] at position [X], [Y]
Change the animation frame of [Object 2]: set to [Number]
[Object 1] now becomes [Object 2] in both events.