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The Find API tab opens a search dialog to help you locate a specific API file. Once located you can double click the API in the list to open it in the API Designer

Import

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The Import options allows you to import a workspace from Profound.js Spaces. 

More information about using Profound.js Spaces can be found here Running Profound.js Spaces Workspaces in Profound.js

Save and Save As...

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The Save As dialog includes the option to save the current file to the local computer.