Click the Flag, then type in Yes, Preset, or No for no double vowels, DL for Double Vowels and then your username will be generated. Warning: If you stop in the middle of your preset frequencies than your numbers will not match to the ones given and you will have issues. Please only Input Numbers (that are not 0 or negative numbers) into Frequencies, if you input anything else it may break it.
Where did Version 3.5 go?, Version 3.5 was super slow due to it asking if you wanted double vowels, now, the speed has increased very significantly, by asking with "do you want custom frequencies?"