The Presets pane of the Preferences window includes project and export presets. Let's open the Preferences window one last time so you'll know where to find the presets for future projects.
1.
Press Cmd-Tab to unhide Motion.
2.
Choose Motion > Preferences.
3.
Click the Presets button at the top of the Preferences window to open the Presets pane.
4.
Open the Show pop-up menu and choose Export Presets.
The Presets pane lists the various export options. You can change the preset here or in the Export window when you choose Export from the File menu. Your preset may vary from the one shown here depending on your current presets settings.