3Com WX1200 Reference Manual page 77

1 In the Building Name box, type the name of the building (1 to 30
alphanumeric characters, with no spaces or tabs).
2 In the Task List Panel, under Other, click Edit Building. The Edit Building
dialog box is displayed.
3 In the Number Of Floors box, specify how many floors the building has.
Creating or Modifying Buildings in a Site 77