SKY Add-ins
Add-ins are associated with SKY applications and are registered by adding them to your application. SKY Add-ins enable developers to build complementary features that integrate deeply within the user interface of Blackbaud solutions. For more information, see SKY Add-ins.
Warning: Registering your add-in will immediately make it visible to any existing customers who've enabled your SKY application. For development and testing purposes, we recommend using a non-production SKY application to ensure your add-in functions properly before registering the add-in with your production application.
From the Add-in tile, to add a new SKY Add-in, select Add. To edit an existing add-in, select the context menu 
next to the Add-in name.
Add or edit an add-in
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Enter a unique name for the add-in. Currently, this value simply provides a reference for your use only. Blackbaud solution users will not see it.
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Specify the extension point for where you want to insert your add-in into the Blackbaud solution.
For more information about extension points, see the Extension points documentation.
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Specify the URL of your add-in. This value must be an absolute and fully qualified URL, and can include static parameter values.
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Select Save.