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Is there some way to have all sliders expanded by default in a Manipulator object, i.e. as if I had clicked all "+" signs?

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Are you trying to do Manipulator[Dynamic[x], {0, 1}, Appearance -> { "Open", "Labeled"}] ? – David Slater Oct 22 '12 at 15:52
up vote 9 down vote accepted

As David Slater comments you can specify this with the Appearance option:

Manipulate[x, {{x, 0}, 0, 1, Appearance -> {"Open"}}]

Mathematica graphics

From the documentation on Manipulate:

Mathematica graphics

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OK, this works. My Manipulator has lots of sliders: is there a method to open them all at once? – nccc Oct 22 '12 at 17:35
@nccc Not that I know of, but I'll look. – Mr.Wizard Oct 22 '12 at 17:52

To get the "Open" setting globally, by analogy with this answer:

SetOptions[Manipulator, Appearance -> "Open"]
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