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Merge Object
)Merges with its parent the object in the frontmost simulation that is currently selected in the active window.
When you select this command, the currently selected object in the active window will be merged with its parent. Each of the frontmost simulation's open windows will be updated to reflect the change.
Merging the currently selected object with its parent is an alternative to simply removing it using the Edit / Remove Object command. It's use is best illustrated by an example. Suppose that you had a simulation containing the Sun, Earth, and Moon, and wanted to convert this into a simulation containing just the Sun and Earth in such a way that the Earth's orbit is left unchanged. What appears as the Earth's orbit is really the orbit of the barycenter (center of mass) of the Earth and the Moon, so that simply removing the Moon will result in the Earth's orbit being changed. By merging the Moon with the Earth instead, the Earth's orbit is left unchanged - after the merge the Earth's mass, moment, and momentum will be equal to those of the barycenter of the Earth and the Moon before the merge.
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which removes the object in the frontmost simulation that is currently selected in the active window.
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which undoes the latest change to the frontmost simulation.
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which redoes the most recently undone change to the frontmost simulation.
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