/diy/ - Do It Yourself

I've been starting to do more with soldered boards, and had Qs about veroboard / strip board (pic related.)
What's the best way to break a trace? I typically scrape it away with a knife.
Is there a veroboard "layout" or some such in Kicad? Ran through a tutorial to see the workflow (at suggestion here) but not interested in having board printed yet, just enhancing design. Is there a veroboard underlay that can be put into Kicad when placing components?