Hi Pelayo
If you wanna settle costs to cost to one object and revenues to another, yes its possible
Create a source structure and assign in settlement profile. In source str, create 2 assignment lines - one for costs and one for revenues.
Similarly in alloc structure create 2 assignment lines and allow the cost object like CC, IO in each assignment lines
Now while maintaining settlement rule, assign 2 rules.
In rule 1, select source str assgn 10, assign settlement receiver as CC
In rule 2, select source assgn 20 I.e. revenues, assign settlement receiver as internal order
Br. Ajay M