In the latest version of TDX, you can apprently create a custom location attribut that allows you to use "location" on a form more than once. For the types, we have "location" and "location and room". How are these supposed to work? If I use both, I cannot make "location and room" a child of "location", the "location and room" attribute type seems to only show locations and not rooms. What is the trick to get custom location attributes to work like the built in location attributes?