BIM Explode
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Keyboard: BIMEXPLODE
Breaks apart an attached BIM underlay into polyface meshes and polylines that can be edited. It is similar to using the Explode command for a BIM underlay except all BIM underlay intelligence is kept intact and each resulting entity is placed on its own layer.
FILter/<Select entities to explode>: Select the BIM model you want to explode, and then press Enter. Choose FILter to filter the selection by properties.