Thank you for your quick answer.
Seems the problem is with plugin, I returned to theme I used before and cannot change the number of columns. I tried to disable all plugins, and enable only Nextgen, but this not solve too.
I´ll try contact with the developer to solve the problem. I just need this to buy the Pro version of the SuperPro Theme.
About to use the gallery from WordPress, it´s impossible to me, because I have more than 20k photos on Nextgen Plugin.
Best regards,