wildfire4 config.pro option documentation for: MFG_AUTO_REF_PRT_AS_CHK_SRF            

mfg_auto_ref_prt_as_chk_srf

yes, no

this option applies to gouge checking in milling. the system automatically includes all solid surfaces of all reference parts as check surfaces for surface and 5-axis trajectory milling. to disable this functionality and select the check surfaces manually, set this option to no.