Prompt for User Input to use the whole width of the screen

I need my Prompt for User Input to use the whole width of the screen
I have set Next Engine Window position and size to
SCREENVISIBLE(Main,Width) * 95%

However, KM is limiting the input form width to about 40% which corresponds to (number of buttons * width of longest button) and this overrides the length of explanatory text at the top.

2: Workaround: Would it be possible to have a cogwheel setting that specifies button location TOP, BOTTOM, BOTH as currently they are off the screen and out of sight.

3: Workaround. Would it be possible to have a cogwheel setting that specifies the spacing between input lines? So I can squeeze them together a bit.

4: Escape for Cancel does not seem to work.