Zeitung Flex from Underware on Vimeo.
Zeitung comes as an OpenType Variable Font, but also as Zeitung Flex for those moments when OpenType Variable Fonts are not supported. For example in older browsers, but also in desktop applications. The Zeitung Flex extension allows you to work with variable fonts in Illustrator and InDesign (CC 2015+). This screencast shows Zeitung Flex in action in InDesign. Open the extension, and tune the weights precisely. See how the extension automatically controls optical sizes, or offers some typographic effects combining a large amount of weights. The variable font family is based on your preferred weight of the Regular style, and creates a related Bold and Light weight.
Of course hidden bonus feature has been included: the extension can actually handle switching back and forth to italics of multiple fonts. Some designers will be aware that InDesign by itself can’t do this. Selecting a text set in multiple fonts can normally not be made italic with one keyboard shortcut, but with Zeitung Flex this is easy peasy.