Does this help:

Type your additional paragraphs in on the form, with all the possible extra
paragraphs in, each seperately in its own cell(s), don't worry that they
overrun the cell
Default is that all the possible paragraphs are visible.

Then use a check box from the forms toolbar, set control properties to say
cell z100.
If checked then it will say TRUE in this cell if selected.
Then use conditional formatting to make the text white if the value is TRUE
(set formula is =z100).Then your text will disappear if the box is ticked.
You can move the box around and call it what you want  e.g. Is the shipment
Hazardous? They tick the box and the text appears.

The downside is you will end up with blank lines where your white paragraphs
are, so your form will end up long. Or you could use macro to hide the lines
with the unnecessary text, if for example you want it to print neatly without
big gaps

Sub Hide_rows()
'
' Macro1 Macro
' Macro recorded 23/06/2006 by robs
'Hide rows if check box is ticked
'
If Range("z100") Then
   Rows("4:6").Select
   Selection.EntireRow.Hidden = True
   Else
   End If
   
End Sub

This does it for one paragraph of 3 lines only, you would need to add more

This assumes you do the check box as above (no conditional formatting and
put the link to cell z100.

If the box is not checked the rows will be visible, if checked they are
hidden once the macro is run.

If you do both the above, then the paragraphs will disappear on screen as
soon as the box is checked, but the rows will not hide until the macro is run.

If you put button called print layout on your sheet, and get it to run the
macro above, then should make sure it all fits on a page, by hiding all the
unnecesary blank lines. If you want this could set print range and print it
as well