quite new to scripting... as a matter of fact i just started today

Next step was creating a litle box to have easier interaction. This works OK
But when i try to use multiple parameters the problems appear...
Basically what i try to do is have 3 textboxes (start, end & step values) & for each value in that range the fractal macro must be called. Later i also want to do this for multiple parameters...
Here are some critical parts of the script i'm trying to fix:
Edit=RangeSt,15,22,230,t0
Memo=RangEnd,15,60,230,20,t1
Memo=Step,15,95,230,20,dt
Button=Go!!!,15,190,100,20,3
Button=Out ==>>,125,190,100,20,2
EndDialog>MyDialog
Label>MainLoop
Show>MyDialog,result
If>result=2,End
If>result=3,PrepareParam
Goto>MainLoop
SRT>PrepareParam
Let>Param=MyDialog.RangeSt
ChaoScope
Let>Step=MyDialog.Step
Let>Fin=MyDialog.RangEnd-Step
While ParamPrepareParam
SRT> ............ END>ChaoScope
Label>End
Thanks to those who are still here ... for the questions :
* It seems both buttons are disabled right from the start after i added the 2 supplementary textboxes (Memo type as suggested in the manual...). I tried to use 4 & 5 instead of 2 & 3 but that didn't help.
* The PrepareParam function should set the Param & calls the ChaoScope macro (don't know if i'm allowed a While-Do & if so what the exact syntax is)
* How can i call Param from within the ChaoScope routine, Param, PrepareParam.Param or something else?