Roxy, I am able to upload BeckDac with my modified Configuration.h to the RAMBO board on my printer; however when I close out of Marlin on my laptop, reopen it and try to upload it again (with or without any tweaks to my Confguration.h) I always get the error message "n_points was not declared in this scope" and the line "int xGridSpacing = (r_probe_bed_position - l_probe_bed_position) / (n_points-1);" is highlighted in Marlin_main.cpp

Why would Marlin upload fine the first time, but not again after closing out of it and reopening it?