Another Garmin 430 question

I've been told that it is possible to load successive approaches in the
flight plan page but have been un able to either figure out how to do it or
find any info in the manual about it. For instance if I wanted to create a
flight plan to take off at one airport, fly to a second airport then do
several instrument approaches at the second airport then head to a third
airport and do several approaches there. I have no problem loading in the
airport and then the first approach, but if I try to enter a second
approach, the first approach is erased, even if I re-enter the airport in
the flight plan after the initial approach. Any ideas?

Thanks
Jim