[Some of the text in today’s article has been recycled from earlier articles.]
Demo file: virtual-list-with-window-uuids.zip (requires FM 26 or later)
Introduction
As the whole world — or the whole FileMaker world at any rate — knows by now, last week saw the release of FileMaker 2026 with a number of compelling new features, as well as improvements to existing features. And within a day or two, as if by magic, an abundance of well-written, insightful articles blossomed like a field of springtime flowers to serve as trusty guides, including…
- Soliant: FileMaker 2026 Executive Summary
- DB Services: Claris FileMaker Pro 2026 Overview
- 1 More Thing: FileMaker 2026 is Here!
- Squaremoon: Claris FileMaker Pro 2026: The Complete Walk-Through
By contrast in this article we’re going to focus on one new feature, and its relevance to the phenomenon known as virtual list. To quote from the FM 26 release notes:
The Select Window, Close Window, Move/Resize Window, and Set Window Title script steps now support selecting a window by UUID, making it possible to uniquely identify a window even if multiple windows have the same name or if the window’s name has changed. You can use the new Get(WindowUUID) function to get the UUID of the currently active window.

