You cannot reuse the built-in controls, you can use the Fluent API to retrieve the images part of your album:
var images = App.WorkWith().Images()
(w) => w.Parent.Title ==
w.Status == Telerik.Sitefinity.GenericContent.Model.ContentLifecycleStatus.Live)
//// do something
You can also take a look at how to create a custom control designer in one of our short tutorials -> How to create a widget custom designer
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