Hi Michael,
oh man .... - you are absolutely right!! I have now taken a close look at the input dialog and there is a combobox ("Splitting") - by default it is "By Object" (which give the _1 suffix) but when you enter "By Identical name" then you get the object name exact as in Moi3D. Sorry for this stupid question - I should have looked into it more closely before. THX for your help!! Best, Robert