IVE: Focus issues

I noticed focus issues, when the working window is split like this:

I may be editing the text on the right window (ASN.1 editor), and if I press the Delete key, it deletes something on the left window (e.g. a connection) even though the focus is still on the text editor

Note: The reason is that in IvAppWidget::initActions() the delete action is using a shortcut. Which is fine for the single app. In QtCreator, the action should probably be registered via Core::ActionManager::registerAction?
Note 2: Same applies at least for undo and redo
Note 3: Same applies for MSC and DVE