Structuring Code For Manual, Record, Play Mode

Hi,
I have 3 Vi's, one for manual operation, one for record and one for playing back the recorded data. They take a 0-5V signal read by a Arduino Uno micro controller.
Manual - this just constantly reads the signal
Record - upon activation this records the signal from the Arduino ad writes the values into a file
Playback - this takes the data written into a file and plays it back.
I am unsure how to structure the code. I want the user to be able to chose between any of the modes, and randomly switch between them (i.e there is no defined sequence). I would also like the common features such as the output chart use the same plot, not use one plot for each mode.
I have attempted to do this using a case structure, however you can only switch between cases if you change the case, then stop the currently active state. Even this does not work for switching between some stated as they do not have a stop button to allow release from the active state to the new one.
I'm sure that there must be a convenient way of doing this, I'm just not sure what it is and am not sure what to be searching for on the forums. I have attached my present attempt. Any advice or example vi's of a similar type would be appreciated.
Eventually the code will be integrated into a system for manually operating a 3 axis table (stepper motors), with the ability to record operations, and play them back. I have the stepper motor control dealt with, I just need to understand how to switch between operation modes. The input will come from joystick and potentiometers measured by a microcontroler to form the input.
I'm using labview 2010.
Solved!
Go to Solution.
Attachments:
Record Data to File Pour_Machine_V1.vi ‏12 KB
Master_Structure_V2.vi ‏100 KB
vi structure.jpg ‏72 KB

Code attached. Hope this helps.
EDIT: I re-attached the Controller VI and added Batch Enable-Disable to make the UI more user friendly. Why not, you know?
Cheers,
Rory
Attachments:
Batch Enable-Disable.vi ‏15 KB
Controller.vi ‏30 KB
states.ctl ‏5 KB

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