Instructions
Create your custom hole using whichever locales and pieces you want for the hole. Include a tee and pin for the hole to be playable.
Press the "Start" button on your PS3 controller to pull up the pause menu. Press the down arrow on your controller until "Test Mode" is highlighted. Press "X" to open test mode and play through your custom hole.
Play the hole to make sure the hole doesn't contain any errors. Continue through the hole until you successfully make the ball into the hole.
Return to edit mode if you discover any faults with your custom hole while testing it. Edit any errors that make the hole unplayable. Make any other adjustments you want to the hole before saving it.
Return to "Test Mode" after any edits to successfully play through the hole to validate it. Save your custom hole under the name you want to use. Return to the "My Courses" menu and select "Publish Hole" to upload it.