Now it saves the differente sheets as:

01_drawing.dwg

02_drawing.dwg

03_drawing.dwg

which is not good. Can it be changed to

drawing_01.dwg

drawing_02.dwg

drawing_03.dwg

from somewhere?

Or is there any reasonable way to get them into one file? It's not good that the first drawing sheet is in Model sheet in the dwg and the rest are are in Sheet2, Sheet3.