Yes if the user can resize the form; otherwise,
No. The default is Yes.
Remarks
If this property is set to Yes, then a Size option also
appears on the Control menu for the form. To access the
Control menu, use ALT+- (hyphen) for forms, use ALT+SPACEBAR
for some tools and for the application window, or click the
horizontal bar in the upper left corner of the frame.
This setting is checked when the form is opened. This property
does not affect associated subforms.