I forgot to mention a bad 9.5 behavior !
I still prefer opening midi editor in its window and not on project one bottom. But I like the “Editor Content Follows Event Selection” feature.
The annoying thing is that when I select a container in the main window in order to edit midi data in it, it displays the container at its beginning ! And 99.9% of the time, the things I want to edit are close to the cursor ! So when the container is very large, each time I open it, I must scroll untill the cursor ! 
Not pleasant for my workflow… So why doesn’t it display the place around the cursor, just like when I open the midi editor by double-clic on a container because it was not already opened before ?
And the most stupid that is This feature exists in the “lower zone” widow, called “Link Project and Editor Cursors” why not for non lower zone editors ??