Cncjs features

I built a plasma table, using xpro v5 controller, CNCJS software, and fusion 360 for CAD/CAM. It is working well, but I feel CNCJS is a bit lacking. If I have a clean run, all is great. But at times I would like to pause and restart at a designated g-code step. I haven’t been able to accomplish this. Maybe because of lack of my knowledge, or there are just software constraints. Any help would be appreciated, or thoughts on different software recommendation. Thanks in advance, John