indeed pop caps do not apply to uvip. in world zabys i.e. commercial properties you have the ability to BUY more capacity. one example would be rooftop penthouse. standard cap i believe is 5 regardless and you can buy as much as you wish upto 300?? in 5 slot increments. note that pop increase purchase is only available to uvip.
now you asked how to chamge dimension or is this what you meant, how to change pop caps.
if you do need to change dimensions you need to visit the home profile under properties find the correct property and goto rules. there will need to find force orientation and select the orientation you want. by default i set mine to anything goes. this allows for testing of props and bots. yes having sex with the bots is neccessary sometimes to make sure they do it right. cant have bots fekkin up!!!