On Jun 7, 2012, at 1:12 PM, Marek Maly wrote:

Another thing I have already for my GAFF-param molecules "prepin" and "frcmod" files (wider library for different molecular segments). Is Chimera somehow
able to accept them when creating prmtop and incprd files of the given system ?

Hi Marek,
Allowing WritePrmtop to accept custom leaprc files is on my to-do list but it just hasn't happened yet.  I'll add you to the feature-request ticket in the Chimera Trac database so you'll know when it gets implemented.

--Eric

                        Eric Pettersen

                        UCSF Computer Graphics Lab

                        http://www.cgl.ucsf.edu