//  Keyboard shortcut for going back one level
QAction *action = new QAction( QIcon::fromTheme( QStringLiteral("go-up") ), i18n( "Go Up in Media Sources Pane" ),
                                  m_mainWidget );
But this shortcut do not go one level up. It works like "home" in file browser jumping straight to categories.
Going one level down we have - Enter key but going one level up is missing.
Could this shortcut be made go level up 1 folder?
For example: /folder1/folder2/folder3
1. Backspace => /folder1/folder2/
2. Backspace => /folder1/
3. Backspace => categories list (Local Music, Internet etc)
I found that it may be realized like in Dolpin backAction->setEnabled(index < urlNavigator->historySize() - 1) but I don't know how to make it in Amarok because my qt knowledge is almost zero.