This functionality provides the means to attach one or several blocks to window and doors to provide additional geometry e.g. a window sill, door knob, shutters.
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Blocks list: contains list of blocks attached to the window style.
Custom Blocks Editor
Block combo-box: Used for selecting the block (from the list of blocks) that is attached to the window/door style.
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X: Y: Z: edit boxes: define the offset from block origin point
Component Controls Group
Frame Component:
Outside - block is attached to entire window
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