Loving the Affinity suite of tools! After years of using that other set of products, I've completely switched over to Affinity Photo/Designer for building icons for my web application work.
There is, however, one area that's just a bit less usable to me. In that other photo editing tool, I was able to manipulate and build selections simply by using modifier keys on my keyboard. For example, I could Command-click a layer to select its contents and then Shift-Command-click another layer to add to the existing selection. Or, I could Option-Command-click a second layer to subtract from the existing selection. Or I could Option-Shift-Command-click the second layer to form an intersection.
Now, in Affinity Photo, if the Marquee tool is selected, I do see modes (New, Add, Subtract, Intersect) in the upper left. But these only appear to take effect if I select by dragging; they don't appear to apply to selections made by Command-click'ing a layer. Also, having to click a button to change modes is a bit more cumbersome than using modifier keys to build selections this way.
Am I missing something? Is there a way to build up selections with keyboard modifier keys? If not, consider this a feature request! :)