I would like to be able to display the active document filename in the main Affinity Designer window title property (it shows "Affinity Designer" by default).
Why? Well, to be able to get the time spent on a particular document using tracking software. I'm using Manic Time which extracts the application / document name from the active window title . This is useful when you want to know when and how long you've spent time on particular document, when doing client work. By default in Affinity Designer the document name is not displayed in the main window title, but on the "docked" windows but unfortunately not visible.
Another approach not requiring third party tracking software would be to add document time tracking within Affinity Designer, similar to Microsoft Word where statistics for the document can be displayed using the Info button where the Total Editing Time can be displayed.
Workaround - using floating window
I found that it is possible to display document name when using floating window document), then the floating window can be tracked. But It's a bit messy to resize the window, screen real estate is not used that efficiently, and also it's easy to "dock" the window by mistake (which hides the document name again).
An idea to add an option for displaying document name in the settings like this: General / Display active document name in main window title