halljm

i’m new to Affinity. i can’t find the Mode or the cntext toolbar. I’m working on an ipad pro.

I am trying to change the sky in a photo. I've tried following video tutorials, but my Smart Selection Brush Tool is not working. I have the Background layer selected and the other photo unselected. Then I select the Selections Persona and choose Smart Selection Brush Tool, Nothing happens when I try tracing the sky portion I don't want. If I try to scribble over the unwanted sky, nothing happens. What am I doing wrong?