Hello and sorry for my bad english (google translation)

I would like the albums are displayed automatically depending on how many photos they contain. for example, first display the one with the largest number of photos. is that possible?

No, sorry, not possible.

Too bad this is not possible to do other than manually especially when a lot of albums on the site

thank you for the quick response

"Not possible" is of course two harsh. But not easy would apply. No Zenphoto album sort does that, but you could actually create that order yourself. If you feel profficient with PHP and with the Zenphoto object model I can provide you the hints you would need.

Of course but I assumed the question was meant as "is there an option for this". There is not. Otherwise our answers to any question would be alway "yes, if you code it yourself" which means for the "normal" user "not possible".