Mary,
I have made a similar system as mentioned by Kirt for my son's Paper Tiger.
The main difference being two rubber rings inside the rear beam. (They were the type used here to joint clay sewer pipes. Takes a good load to stretch them but the still cushion impact and will stretch when you run aground).

There is a continuous line between the rudder cleats , which are located just in front of the rear beam, and the slack in this line is pulled forward by a light shock cord.
The end result is you can flip both windward and leeward rudders without moving from your normal sailing position.
When it comes to centreboards they can be controlled by uphaul and downhaul lines.
If you go to my web page www.geocities.com/phillbrander choose Chined Construction the 32nd photo shows the steering system, cleats and line.
In the photo the line is taught because both rudders are up.
The first time a rudder was release to remove the weed it came up so fast it thru the weed past the centrecase.
The shock cord inside the carbon rudder tube is getting a little tired after two seasons and now needs replacing.

Just the way I've tried to approach the problem.
I'll be putting the same system on my new Taipan when I build its steering system.

Phill