Under the Edit Survey tab click on the Copy link for the question.
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Select the Copy Question To Library option and Copy.
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The Question will get added to your Question Library.
To add a Question from your personal library or from another survey in your account:
Choose your survey
Under Edit Survey Click on the "Add New Question" link.
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Select the Add Question from another Survey / Library option from the Question Type drop down menu.
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Select the question(s) and click on the Copy Questions button. The questions will get added to the Survey.
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