GUI Designer ... resizing components

I cannot find a way to resize components placed on a JPanel by using the mouse.. the components just snap back to preset values in the properties panel. I would have imagined that if i resize by mouse those values would follow??

I have noted on posts elsewhere that there are two "Horizontal / Vertical Size Policy" properties that can be set to 'Can shrink/grow' .. but i cannot see those options in my GUI Designer

I must be missing something really basic ... 3 hours wasted on trying to find out HOW to resize component without having to manually alter properties setting!! Can somebody PLEEEEASE explain to me how i can acieve this.

Thanks :(