When editing a domain, on the limits tab you see (for example) that 2 domain aliasses are allowed.
But, if the "domain aliasses" function is not activated at the functions tab, this will give you wrong information.
A couple of times, I struggled with this wrong information, so could these functions and limits interact a little bit more with each other?
I guess the easiest way would be to disable the input field on the limits tab or something, if that function is not enabled at the functions tab, so you see that the given number is not the actual result.
Another option would be to combine those two things on one tab, so you see the actual functions and limits in one view, but that would need some extra work and restyling.