Hi Hans,
if you name the atoms in the coord file like the uff-types, uff will recognize them.
So if you have in the coord file something like:
0 0 0 c
and uff tells you that this is of c_3 type, then you can change it to, say, c_r by changing coord to:
0 0 0 c_r
or, better:
0 0 0 c r
because the other Turbomole modules will just ignore the 'r'.
Regards,
Uwe