When adding a new Function to a room (for instance switchable light, dimmable light etc) , you get a popup prompting you to name it, or add additional functions. Upon clicking "OK", the functions are created and some group addresses are auto-generated with names based on the function type . Most commonly, I don't want those auto-generated group addresses, so I have to delete them manually before linking the group addresses I would like. I can achieve this by adding a "Custom function", but I like the icons that are related to the other Functions (for instance a lamp on a function involving lights).
What I would like to see implemented, is a checkbox that can be unchecked in order to not auto-generate the group addresses. See image  that I edited.