Copying parts of configuration

Last year I copied u-be303 to u-cp254 (UKESM1 @ 11.1) and then modified it. Main changes were to output a small amount of netcdf data and turn off all PP diagnostics. I have just copied u-cj514 to u-da865 (UKESM1.1 @ 12.1). Is there an easy way of applying any changes I made to u-cp254, relative to u-be303 to u-da865?