Yes you've got the right idea. The question is did you physically put the lights in the coro in this order? For example, the gap between 102 and 103 - you're probably not going to bridge that gap with a regular string of pixels (usually 4" spacing). You'll need to cut your string, run a wire across and then solder on both ends.
The power of xLights is you don't have to put things in visual/logical sequence and xLights handles it just fine. So I often put lights into coro elements in a way that causes me the least amount of soldering. Sometimes it makes for what looks like very odd numerical order in excel but xLights handles it like a champ.
As with many things, it's your choice. My first year I was very methodical and everything had to be in logical sequence. Now I'm more lazy (in my opinion) and my numbers look odd, but in the end it's just less work for me to get the same result.
