That is great information and a big gotcha. The hose cleaning brush I have is 2 sizes on end of flexible rod. One for the SlimLine and other for regular. Even though I use the smaller, the bush will not reverse in the hose. So I have to push through to get it to come backwards. Having that little "tip" is probably easily broken but also will prevent pushing through.
I do see now that as soon as the ClimateLine is plugged in, new options appear in the menu.