The Core Settings menu allows you to tweak various aspects of the FreeSewing Core library, which — under the hood — generates your pattern for you.

In contrast to Design options which are specific for a given design, these Core Settings are the same for every design. So you will find this menu always provides the same settings, regardless of what design you are generating a pattern for.

NOTE
User Experience

The User Experience setting of your FreeSewing account will impact how you experience the FreeSewing website.

By default, some of the more advanced features of this site are hidden to make it more easy for new users to find their way.
If you want to sacrifice some of that simplicity to gain more power, you can update your User Experience setting accordingly.