Turn this setting on if you want Songspace to automatically generate even splits amongst all songwriters credited on song projects that you create. This setting can be overridden on individual songs and only affects the songs that you create in the future.
Here's how to change this setting:
1. Click your profile image in the top right corner and click Account Settings.
2. Scroll down to Preferences and click the toggle next to Calculate writer splits evenly to turn this feature on or off.