upscaling the coffee temp in gaggia sync compact

[drinker]

hello friends,
I have a princess machine (its exactly like thr gaggia syncrony compact) and i want to get a warmer esspresso, and by heating the cup.
I know that in the digital machines this option is included in the menu.
I thougt maby to replace the termostat ( is it possible that write on it 170 RA, its renkin scale for temp) but i dont want to do it if there is another way.

thank you very much

drinker