It would be great if it were possible to recall a PEQ or GEQ into an UFX or FX rack (or, even better, a bus channel strip) in order to properly use the FX busses as auxes when needed.
It seems to me that this should be possible, considering that a bus channel strip would likely require less processing power than a reverb, for example.
Sometimes you need one or two additional auxes, but don’t need all eight FX mixes. In that case, the ability to turn an FX bus into an aux would be a great addition.