Dear Ilya, In a colvar section you can define just one colvar type per time. COLVAR section is repeatable as many times as you like. Teo On 12 May 2008, at 16:13, ilya wrote: > > > Dear all, > > is it possible to run metadynamics with several colvars? When I define > two distances in SUBSYS%COLVAR it says that &DISTANCE can't repeat. > > Ilya. > >