Join Surface Tool Problem

Hi everyone


I have a problem working with surfacing, Iworking within Cat.Part model, using create geometrical set not hybrid design


Inside of each geometrical set I put wrongly Join surface as final operation


the preoblem is nowI would like modify something but everything is conected by this join and if delete some join everithing put in red color and lost all operations


Can anybody tell me please if there any way to disable or delete this join inside of each geometrical setwithout lost all operation before


I would like to do modification in each geometrical set but I ca'nt


thank you all and I really appreciateto have news from you soon for yourhelpto solve this problem


Regards


Enzo