Hi - HTML or MHT documents in a Scrivener project do not zoom in and out with the assigned shortcut keys or with the menu command View > Zoom > In/Out . But they do zoom in and out when a zoom percentage is selected on the same menu. Images and PDFs zoom by either method, so I’d request an equally convenient zoom on any doctypes that can be displayed in the Editor pane.
The menu option that has no effect is not greyed out, so I’d maintain that this is a bug report as well as a suggestion.
Thanks for taking a look
Rgds - Jerome