Congrats on the new boat!
If it's one like this (
https://www.highfieldboats.com/boat/...nge/sport-460/) I'm not sure what ideas one can give you. The rear bench appears to be part of the moulding and can't go any further back (or indeed forwards!), and the console is carefully designed around the sunbed area, flooring, etc. so moving it forward and retaining the cosmetic looks is going to be expensive (and ruin the factory sunbed arrangement)! The guy in this picture (
https://images.boats.com/resize/1/89...00&w=900&h=900) seems to be very bent over while driving standing up, so the layout/ergonomics don't seem to be ideally suited to adult helming whilst standing given the height of the controls anyway.
I think it's probably a case of enjoy this one as it is (and drive whilst seated!), and if/when it comes to the next boat then look for a slightly different layout if you want to helm whilst standing.