WorksheetPage wp = Project.WorksheetPages(0);
wks = wp.Layers(0);
bool bRet = wks.SetSelectedRange(vR1);

int nn = wp.AddLayer(strNew);
Worksheet wks2 = wp.Layers(nn);

void copy_selected_rows()
{
	WorksheetPage wp = Project.WorksheetPages(0);  // workbook
	if(!wp)
		return;
	Worksheet wks = wp.Layers(0);  // first worksheet in workbook
	if(!wks)
		return;
	
	vector<int> vR1;  // the rows to be selected
	vR1.Add(5);  // indices of some rows to be selected
	vR1.Add(8);
	vR1.Add(14);
	vR1.Add(23);
	wks.SetSelectedRange(vR1);  // highlight the rows
	
	string strNew = "NewWks"; 
	int nn = wp.AddLayer(strNew);  // add a worksheet to workbook
	Worksheet wks2 = wp.Layers(nn);  // get the newly added worksheet
	if(!wks2)
		return;
	
	wks2.SetSize(vR1.GetSize(), wks.GetNumCols());  // set size of the new worksheet
	for(int ii = 0; ii < vR1.GetSize(); ii++)  // loop to copy the selected rows to the new worksheet
	{
		wks.CopyTo(wks2, 0, -1, vR1[ii], vR1[ii] + 1, 0, -1, CPYT_COPY_COLUMN_FORMAT | CPYT_COPY_COLUMN_DESIGNATIONS, ii);
	}
}