ht series qcII pager

i tried to search on here, to find out if all your allowed on ht series portables is max number of four qcII pagers. to rx... is this the allowable i tried to go more (just for rx only) and it stopped at 4 but under the call list tab under signalling it will allow more. under conven. personality tab under signalling... four is the max allowed? or am i missing something??? again,,, only for rx'ing not tx'ing.... thank you in advance!!

ht series qcII pager