place "Abort" button close(r) to "Accept" button
it took a while until I discovered the Abort button: it's placed at the left edge of the topbar and IMO too far away from the Edit controls (even on my 1366x768 screen).
It could be placed next to Accept:
if the current 'Back' button needs to be kept in the Edit view, the Abort button could be labeled X to avoid confusion: