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General suggestion valid for all three tabs is to add a link to official documentation, where users can find detailed information on using fields. The link could be by the line "Showcase apps......." (Same link for ALL tabs; it appears above tabs.)above the tabs. Or, link to a more specific page from each tab. See Mockup proposal.

Form fields tab changes

Suggest making a few alterations to the Showcase App: Form fields tab:

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