Question: How do I copy a value in a textbox on one maplet window and display it as a label or textbox in another window

Hi, I'm using Maple 12, and am designing a maplet for a school project.

I have a window with a textbox called 'h' which is used by the maplet to generate the solution to the heat equation given those initial conditions (contained in textbox called 'h'). That part is working, but I would like to display the contents of that textbox in a label or textbox in another window which has a plot of the solution.  Is there an easy way to do this?

I tried Label[''function_display'] (value='h') as my TA suggested, but that gave me an error that Label (I guess in Maple 12) doesn't have the option of value.

I tried changing it to a text box, which does have a value option but unfortunately that just set the textbox to be just "h"...

I also tried writing a function  that used the command Maplets:-Tools:-Set( 'function_display' = Maplets:-Tools:-Get('h'::algebraic)); and had it run when the user clicked the button on my first window to open the plotting window, but that just made the text box empty.

Can anyone give me an idea of what to do here? It would be much appreciated. It's cosmetic I know, but I would like to know how to do this.