Can I add an additional property to MultiUserChat RoomInfo?

Question

In Smack we can get roominfo room information. And now I have additional information (for example, about where the room is) for the room, how can I do this with smack?

for example, in the current smack:

• The administrator can set information about the room (for example, a description of the room) through MultiUserChat.sendConfigurationForm(...);
• and the member can get information (for example, a description of the room) through MultiUserChat.getRoomInfo(...);