The transverter may be used in any mode that the transceiver is capable of. All filtering, signal processing, memory storage, scanning, frequency splitting, and all of the other bells and whistles that your transceiver can do, can be done on another band. There are a few things that are not transparent to all transceivers. Two of them are power control and frequency readout. Although there are a few transceivers on the market that allow these two functions, most transceivers will not.
Power control is addressed in the transverter set-up and can be adjusted in other ways.
The frequency read out will become a minor not noticeable inconvenience the more you use your system. The two main reasons to use a transverter are Performance and Economics. DEMI transverters are designed for the high performance, weak signal enthusiast. Being that a transverter is an add on to an existing system, it now becomes economical. A lot of transceivers manuals are sometimes confusing but most of the time the answers to the questions are in there somewhere.