How to let child objects use and display custom user data of containing group

I have created several groups representing types of objects, and I would like to set the contents of text fields within those groups based on custom data assigned to the containing group. For example, I may draw a group to represent a certain component, and I would like to store its component type, manufacturer, model, and ip address in key / value pairs for the group as a whole. I would then like to display these value strings in formatted text objects placed within the group. The best I have been able to do so far is to assign the data to a single object within the group, and hope that there is a convenient way to style its single internal text block while using the <%Userdata key%> syntax. Is there a way for objects within a group to get data stored on the group itself, rather than having to rely on the individual objects within it?