[gmx-users] Pulling in 4.0 - Any documentation?

[Semen Esilevsky]

Dear All,
Where can I find documentation about the pull code in Gromacs 4.0? As far as I understand old style of setting up pulling simulations in separate file does not work any more, but I can't figure out how to transfer pulling params correctly to mdp file. 
Any help is appreciated!

P.S. Probably the developers could put at least some very brief docs on web site while new manual is being prepared? Otherwise new cool features of 4.0 just can't be used by ordinary users...