Reply to mixers with dual independent PFL/Cue ?

I am looking for a 4 channel mixer that has dual independent cues/pfl per channel, meaning that essentially two headphones can be plugged in at the same time and both can cue the channels independently.

The only mixer that does this to my knowledge is the Ecler Smac 42, a mixer produced in the mid to late 90s.

This may be perceived as a gadget to some, but believe of this in the context of two people mixing/doing a liveset at the same time, it can be quite useful.

I am attaching pictures of the mixer and the cue buttons/headphone outputs so you can get a better grasp of what I am talking about.

ecler_smac_42_dual_pfl_separate_pfl.jpg
ecler_smac_42_dual_pfl_mixershot.jpg