Prevent shadow system in SUM

Hello

I have installed a new PI 7.4 system (SR 1) and now I'm updating it from SP 5 to the newest, SP 7 (both java and ABAP stacks)

I'm using SUM 1 SP 10 patch 8, which is the newest SUM version.

Is there any way to prevent SUM from creating a shadow system? this is just 2 support packages X 6 ABAP components. The system is brand new and I don't care about the downtime, only about the entire update duration.

SUM asked me if I want "Standard" or "Advanced" downtime configuration and I chose standard.

Thank's for your help

Gal