[OutputBuilder, persistence] Contact server to persist combination group when copying existing combination group belonging to rule RHS by clicking the "Copy" button on (last) existing group.
[OutputBuilder, persistence] Contact server to persist combination group
when copying existing combination group belonging to rule RHS by
clicking the "Copy" button on (last) existing group.

Note that we don't do any real error handling yet.

itsjeyd/ODE,itsjeyd/ODE,itsjeyd/ODE,itsjeyd/ODE