Yes, please! Not being able to assign a keyboard shortcut to a Macro—the way you can for Photoshop Actions—seems to be one of the missing features that still gives Photoshop the advantage between the two, at least so far as I have seen for my workflow as I've experimented with Affinity as a potential PS replacement. I personally use it to drop a watermark in with one click via the Wacom ExpressKey Remote thanks to the keyboard shortcut and that knocks out several extra clicks to locate the folder, then the subfolder, then the file, the dragging it into the document, etc etc. Would be great to do the same in Affinity (although clicking the Macro in the panel isn't the worst thing in the world, but again it's just something PS can do...).