- keep the filter across session because this is boring to have to
redo them all over.
- a search for entities accross session.
- a search inside a session
For example I was looking for all the changes I did to the UI part of
my application but I was doing many development
loading different unrelated package and saving after.
Right now you can restrict to view changes but only if you have a
first entity of the package for example so you have to look first is
there an entity of this package.