CLASS
ALL
STEEL_GIRDER
STEEL_BEAM
STEEL_COLUMN
RC_GIRDER
RC_BEAM
RC_COLUMN
RC_WALL
MWALL
SHAPES
RC_FOOTING
SLAB
Main
Property
Align
Materials
SLAB
TOOLS
YES
YES
Extend to Secondery Clicked BST Entity.
COMBINE between two BST Entities.
Extend To Secondery Clicked Face.
Grow To Secondery Clicked Face.