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On BIMSpeed .gen, open Grid slash

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Level and choose Grid Bubble.

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The four controls are Top, Bottom, Left, and

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Right, all checked when this dialog first opens.

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Select the grids first to limit scope, otherwise the

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command can apply to visible grids in the active

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view.

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In this example, keep Top and Left checked and

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clear Bottom and Right.

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Top and Bottom apply to vertical grids.

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Left and Right apply to horizontal grids.

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Click Run.

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The setting is view -specific, so repeat in a

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different plan when that drawing needs another bubble arrangement.

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The captured plan has grid ends beyond the visible

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drawing area, so this image cannot prove that the

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bubble heads actually changed.

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Pan to the ends or adjust the extents to

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2D and check the visible heads before delivering a

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sheet.

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The saved model retains the attempted setting.