Using [compress=all] for registers yields somewhat puzzling results (1.0.4 (TeX Live 2017)). I would expect the register of the following code to become one single range "1--7", though context produces "1--2, 3--7". Is this the expected behaviour? And if so: is there another switch to get the ranges to be collapsed completely? Also: There wouldn't be a shorthand to define explicit ranges? LaTeX has \index{Demorange|(} to \index{Demorange|)} which is actually very convenient. Best regards, Florian. \defineregister [demo] [demoes] \starttext 1 \demo{Demorange} \page[yes] 2 \demo{Demorange} \page[yes] 3 \startregister[demo][demorange]{Demorange} \page[yes] 4 \demo{Demorange} \page[yes] 5 \page[yes] 6 \stopregister[demo][demorange] \page[yes] 7 \demo{Demorange} \page[yes] \placeregister [demo] [compress=all] \stoptext ____________________________________________ Florian Grammel Copenhagen, Denmark