Non-spherical particles

Hi all,

I'm working on a simulation where I just want to investigate the behavior of non-spherical particles during filling and emptying of a small container. I want to clump multiple spheres together to form elongated particles. For a few individual particles, I have done it already with fix rigid. This is quite expensive for several 1000 particles. What I want is to fill the domain with a continuous stream as in the example on this website (node/20).

So far, I tried it with
fix pts1 all particletemplate/multiplespheres 1 atom_type 1 density constant 2500 nspheres 4 ntry 100000 spheres file multisphere.input scale 1
fix pdd1 all particledistribution/discrete 1. 1 pts1 1
fix ins nve_group pour/dev mass 30. 1 distributiontemplate pdd1 vol 0.25 200 massflowrate 60. vel uniform 0. 0. 0. 0. 0.0 region bc

The error message informed me to use fix pour/multisphere instead of fix pour/dev. Is fix pour/multisphere already implemented or is there another possibility to define the pouring with multispheres?

Thanks in advance.
Rolf