Yes you can.
However, changing the size and position of the form DOES NOT change the
size of any of the controls on that form. This can lead to a smaller
form that has scroll bars necessary just to get to information on the
form.
If the data takes up more room that is viewable in the smaller size
then the scroll bars will be needed just to read the data. Also you
definitely HAVE to allow scroll bars just to see the data.
If the data fits in the smallest size then when on a larger screen, it
will look lopsided and look poorly designed.
I am not sure that I would recommend it.
Ron