>Unfortunately not !
I have no further ideas for now. This looks impossible.
This might not be an ideal solution, but anyway, I tried to force a memo field with something like padr(Expression, 300). This gives me a "string too long to fit" error.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)