Most of the building blocks require you to be in a specific context. This is important to understand if you would like to use a building block. This is because the X-paths are normally relative with regards to the context of where you are (see 3.7).
E.g. if you have a building block that is intended to be used in the room context and would like to use this in a new report you must first make sure you are in the room context by e.g. inserting a repeating section for each room (below room-container) and then insert the building block in this repeating section.