TotalView Online Help : Chapter 2 Process Window : Group Menu Commands : Group > Detach
Group > Detach
Detaches all processes contained in the current control group. The Process Window from which you invoked this command is also removed.
Tis command releases all control over the processes, eliminates all debugger state information related to it (including action points). If you had attached to these processes, they continue executing in their normal run-time environment.