If you want to edit one of your Recent or Saved Configurations you'd have to launch that configuration from your Dashboard, change the settings, and then generate the new music. Once music has been generated with the updated settings, a new configuration will be on your 'Recent' tab which you can then save.
To do this:
- Launch a 'Recent' or 'Saved' configuration from your Dashboard.
- Click the back-to-mixer button (on the top left of the toolbar next to the SRF icon) which opens up the 'Mixer'.
- Click on any of the tabs on the top of the page to edit the instrument, level, key signature or time signature. On mobile, you can tap the hamburger menu to access those settings.
- After making your changes, generate the music with your new settings.
- Go back to your Dashboard and you will see the new configuration on your 'Recent' tab. You can choose to click 'Save' to save and name the new configuration so that it will be stored on your 'Saved' tab.