Planning the Nortel WLAN 2300 System 93Nortel WLAN—Management Software 2300 Series Reference GuideWorking with LayersMost drawings contain multiple layers of information. WLAN Management Software allows you to hide, add and deleteindividual layers. You also can add and remove objects and move objects from one layer to another. For RF planning,you can convert existing objects into RF obstacles and add new RF obstacles.Generally, only some of a drawing’s layers contain details relevant to RF planning. You can hide layers to simplify adrawing. WLAN Management Software performs RF calculations only with information in visible layers. Each drawingthat you import into WLAN Management Software has a layer 0, which contains information that WLAN ManagementSoftware creates. You can hide layer 0 but you cannot delete it, and WLAN Management Software requires layer 0 to bevisible when calculating RF coverage or performing rogue detection. If you start one of these operations with layer 0hidden, WLAN Management Software displays a message offering to make layer 0 visible again.For best performance and simpler planning, Nortel recommends that you hide or remove unnecessary layers and removeunnecessary objects. The Clean Layout option automatically deletes all objects that meet the cleanup criteria, which youcan modify. (See “Cleaning Up a Drawing” (page 95).) You also can select and delete individual objects.New location oforigin point
