Two Prompts - Selecting 'Default Value' to display from 1st to 2nd.

[Turbanian]

Heisveis!
:o
I have two prompt boxes on a prompt page.

The first prompt is a Radio Button choice with four values.
These values should help define what the default choice in the 2nd prompt should be.

The 2nd prompt holds 10 values.
Based on the 1st prompt, there should be a unique selection of these 10 values based on the choice made.
The problem I'm facing is that there is no obvious way to send in different 'Default Selection' to the 2nd prompt from the 1st.
Going forward I've tried to go around this, by creating four different prompt boxes - Witch all holds their own unique default selection to identify the choices I would like to be displayed.

Further I've then used the classic 'Box Type = None' to show the appropriate box, based off a boolean parameter.
Here, the logic works perfect for everything, except the default selection.

The root to the problem now is that these four prompts (Based of the 2nd prompt) won't change the default selection.
My theory is that because all use the same Parameter Value, cause if I give each of the four boxes their own parameter it works just fine.

But if that we're to be the solution, my query would be endlessly huge to take this into account in the report post-prompt.


So my questions is - How can this be solved in an effective manner?
   From my point of view, an option to 'reset' the parameter value in 2nd prompt and therefore opening up for a 'refresh' to the default choices would be a good option - But sadly I'm at a loss in this process.
   

Any clever minds able to wrap this into a functioning solution?


Best Regards
T