Use TLDs Window to specify TLDs to combine with generated domain names.
Two buttons in first group of toolbar allows you to Mark All TLDs and Invert Marks.
Next two buttons manage visible TLDs. Show Global makes global TLDs (com, edu, net, org) visible. Show Frequently Used makes visible frequently used TLDs. When no buttons pressed, all TLDs are visible.
By default, COM, NET and ORG domains will be used.
Click the check box corresponding to the desired domain name to mark or unmark this domain.
See Also:
Main Features
How To Use Available Domains