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Entry of the directory (or reference to a variable which will hold the directory path, and which can therefore also be manipulated easily through Document Actions)
Possibility to allow the user to upload new images to the specified directory
Possibility to have the user ONLY upload new images. No other selection method is available in that case
Number
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When working with a numeric input, various options are available to limit entry and configure the display value of the number in the document.
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The underlying value of a checkbox is "true" (for checked), or anything else (by default almost always "false", unless the data type was modified) for unchecked. But if the checkbox also is referenced inside a Text Frame (rather than using document actions), you can also configure its checked and unchecked display values.
Date
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The date variable type can be configured with a display format (which is the way the date is inserted in a variable Text Frame), and allows you various ways to limit the selection:
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Color, Paragraph Style, Character Style, Font
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The choice of selectable items can be limited based on a filter on name.
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