Hi Victor,
        Most of Chimera uses AmberTools18 (e.g. minimization; charge addition), but specifically the tools in the Tools→Amber menu use functionality provided by sleap, which is not distributed with current versions of AmberTools.  Those tools use AmberTools 1.5, which was released in 2011.

--Eric

        Eric Pettersen
        UCSF Computer Graphics Lab


> On Oct 26, 2021, at 2:21 AM, Victor Nazarychev via Chimera-users <chimera-users@cgl.ucsf.edu> wrote:
>
> Dear Chimera's users,
>
> I built amber's .inpcrd and prmtop files using command write prmtop from Tools/Amber/Write Prmtop. I used Chimera 1.15 (build 42334), but how could I figure out what version of AmberTools is incorporated in this Chimera release?
>
> Best regards,
> Victor
> _______________________________________________
> Chimera-users mailing list: Chimera-users@cgl.ucsf.edu
> Manage subscription: https://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users