First version with FRONT flag in DUMP block.
First version with FRONT flag in DUMP block.

So far only supported in thin6d, this flag:
(1) dumps at the beginning of every element
(2) allows dumping at every element type, including BLOC (only tested with ALL flag)

Note that s-position in output files is referring to the element, not the dump output...

SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack,SixTrack/SixTrack