First off, great mod, I just started using it and I really like it. But it will not work in a train. I use the Construction Wagon Mod to help build outposts and such and I have tried it in the wagon and in the locomotive but neither work. It will work if I ride in the train but I do a lot of work driving the train remotely and when ever I so that is does not work. If you have a suggestion of what I could be doing wrong please let me know or if you can update this MOD to work in trains or with the Construction Wagon MOD that would be great. Thank you.

Glad to hear you like the mod! Indeed it does not work with trains; the code filters for entity.type being "car" (car or tank) or "character" (player character). I'll look into making it work with trains.

Thank you for looking into it. If it doesn't work with trains you could maybe get it to work with the Construction Wagon MOD, https://mods.factorio.com/mod/construction-train-werl that is the one I use and have used for a long time. Setting my train with this MOD and yours makes building and expanding my base so much easier, especially if I'm off planet and need to build a new Iron outpost for example. Again thank you and hope you figure it out.