Move product position description in Gecko theme

I want to move the product description on the product page to the right hand side of the main photo, and remove the excerpt. There is no option to do this in Gecko theme. See pic of an example

This sounds like it would mean customising the product page template

If you are not familiar with how to do this in the code then you could ask the author but be aware that this type of customisation would not be covered by typical support