I'm trying to add a new light fixture to an existing circuit with four fixtures already on it (let's call them #1-#4). I'd like the new light to branch off from #1, preferably without rewiring it "out and back" so that the new fixture becomes #2 (and #2 becomes #3, #4-->#5 etc). Can I simply tie the new fixture into the #1 box? I'm imagining this would look like a wire nut each for G/H/N combining: (a) incoming line, (b) outgoing line to new fixture, (c) outgoing line to #2 fixture, (d) pigtail to #1 fixture. Would this work? If not, please advise (preferably with diagrams!).
Additionally, looking inside the box for light #1 it looks wired in an odd way to me. Instead of pigtailing to the terminals from a wire nut, they connected two wires to each terminal. See attached photos. Should this be changed?
Apologies for any fails, I'm a novice with electrical.