Yes you do have the option to submit to a select or limited number of directories. Once you log in and go to the 'Submit Site' section, you are given various submission options, one of which is to submit to a specific number of directories. Enter the number of directories to which you'd like to have your site submitted in the box provided.
Note: The number entered is applicable for each site you select to submit. For example, if you have 2 websites to submit and you enter the number '100' in the box, this would mean that you want each site to be submitted to 100 directories each and making 200 submissions in total.