protected void doInstallActionHighlighters() {
    if (myChange.isSkipped()) return;

    boolean leftEditable = myViewer.isEditable(Side.LEFT, false);
    boolean rightEditable = myViewer.isEditable(Side.RIGHT, false);

    if (rightEditable) {
      myOperations.add(createAcceptOperation(Side.LEFT));
    }
    if (leftEditable) {
      myOperations.add(createAcceptOperation(Side.RIGHT));
    }
  }
protected void doInstallActionHighlighters()