Ohhhhh ... Gottit Danno!!! I have to select the Shipping Service first - then the package dimensions area changes to white and I can enter the sizes. Ohhhhhh yeah .... easy peasy!!! My brain worked only from up to down. So ... it does work with the free trial and it does work with 'create new listing' as well as the 'create similar listing'. I thank you thank you for your help