[NTG-context] Alignment of Itemize

I have put this in my source file: \startitemize[R][4*broad,stopper=---] And in the output the m rule (---) was overlapped by the roman numeral. By the way I would like to align the roman numeral to the right more or less like this (it is difficult to do in text format) I --- blablablablablablabla II --- blablablablablablabla III --- blablablablablablabla IV --- blablablablablablabla VIII --- blablablablablablabla Thank you very much for your help Armando