Procedure

Workflow:

1. build guide (locators)
2. position and rotate locators
3. mirror locators left to right
4. build the rig
5. bind the skin (by yourself)

Procedure:

Step 1: Enter character name and click biped template button

Step 2: Place, Rotate locators to match the character's joint position and rotation

(Ignore right side - red locators, since it can be mirrored by the blue locators. Aso, avoid using the scale parameters when placing locators)

Step 3: Click the top locators that you want to mirror and click 'mirror'. After everything is in place, click 'build current'

Step 4: Select joint chains (make sure to select separated hand and foot joint chain) and bind your weight