NSDZ

Hello, I would like to know if there is a plug-in that you enable the printer to pause at a certain layer. In multiple part printing, that would allow for example to make sure the build plate is ready for the next part (for instance, you could put some glue at that point, without being constantly looking at when the previous part is nearly finished and manually pause). I am quite new in 3D printing so I haven't looked much into gcode yet, could anyone help me out providing guidelines for writing such a plug-in or provide one that would exist already. Thank you in advance,