Highlight multiple cursor(s) out-of-view

When you have multiple cursors/selections which are not in the current view (i.e. you scrolled away from them) it might easily happen that you type away without noticing, that you actually modify multiple places at once. It would be nice to have a clear warning when an additional cursor is not currently visible. For example by showing one or two of these cursors (in their respective scope; i.e. the line they are in) at the top or bottom (depending on where they are in relation to your current view) of the editing window.