Nagios XI - on service detail, host detail, etc pages, changing from 50 per page to 500 per page requires opening the pulldown, selecting the value, and then hitting "go." Within CCM, changing the differently named (but same functioned) "Limit Results to" number from 15 to 50 changes as soon as you select a different value.
I'm a big fan of eliminating useless clicks.
Please consider changing any of the pull downs that change "number of things displayed on the screen at once" so that they activate as soon as they are changed, rather than waiting until a GO/submit button is pressed.
Expand this out to other Nagios products as well, as apropos.