In mp3DirectCut mark a selection - left mouse button to add, adjust edges with right
button or use the buttons Set begin and Set end (or the keys B and N) to use the current play position.
Adjusting works everywhere after seeking any position. If needed press Prelisten AS CUT (or F9) and fine adjust
the selection with the keys 1-4. Cut with the Cut/Cue button (or Del key).