MergeSessionsDialog d = new MergeSessionsDialog(window.getShell(), sessions, descr);
if (d.open() == IDialogConstants.OK_ID) {
Object[] result = d.getResult();
ICoverageSession merged = (ICoverageSession) result[0];
for (int i = 1; i < result.length; i++) {
merged = merged.merge((ICoverageSession) result[i], d.getDescription());
}
sm.addSession(merged, true, null);
for (int i = 0; i < result.length; i++) {
sm.removeSession((ICoverageSession) result[i]);
}