One window shared by multiple NSDocument instances

In plain words

BSMultipleDocumentsWindowController is a macOS development tool that allows multiple NSDocument instances to share a single window using tabs. Built for developers working with the Cocoa framework, it provides a way to manage multiple documents in a tabbed interface rather than separate windows. The tool is designed for those building document-based applications on macOS.

written from the facts on this page · September 2026

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