Lexus: Nav - Add Previous Location To Memory?

I have a 2004 ES330 with Nav. When I program a location, I often want
to store it later in memory. Is there a way to save a "previous"
location as a memory point?

I know I can reenter the location as a memory point by entering the
address over again. Or I can just call up the location from the
previous list rather than the memory list. But if there's a way move
the data without reentering the data, I'd appreciate if someone would
let me know.