There is no sure-fire way in the IDE to get a list of all the modified objects
you have - since various object types permit structural modifications without an
open Editor window (e.g. Java sources and many others), they can be modified but
you can only see this by virtue of selecting the node and seeing the Save button
turn on!

You can choose File | Exit and look at the list of modified files, then Cancel;
but this shows only icon and simple name, not path, so if you have many files
with the same name this is useless. (E.g. apisupport's layers are typically
called "mf-layer", so seeing such an icon in the dialog when you have been
working on many layers is not helpful.)

Suggest:

1. Exit dialog should show more information about where each modified file lives
- filesystem, path.

2. Modification status of objects ought to be displayed as an icon badge, rather
than a " *" appended to the name of the object in the Editor component, which
would still let you see modification status in the Editor (the icon would be
showing) but also let you see it at a glance in the Explorer, whether or not the
Editor is open.