Unfortunately, most 7-segment displays don't support that without external logic. With separate anodes, and common cathodes, the rows are separated into digits, but the typical 7-segment display has on common cathode or common anode though they may appear on two pins, and then seven anodes or cathodes that determine what the display will be. Matrix displays will work in exactly this way, however. I've only seen a few that actually had separate anode and cathode connections for each segment.

However, a ULN2803 has eight darlingtons that can function as current sinks, i.e. column selectors, and two CA3083's (5 npn's on a 14-pin DIP) or similar will allow the construction of a constant current driver for each row. That will allow very good control of brightness if the duration of each column's drive is precisely the same.

RE