Each IMVU avatar has 10 body parts, and each one has a corresponding “body part ID” that goes from 0 through 9.
When you create products that modify the way the avatar looks, it is important to specify which body part ID the product will override. This will affect the other products that the avatar may use, since an avatar cannot have two products overriding the same body part ID. For example, if you have an item that overrides body part ID 1 (the hair), wearing another item that also overrides body part ID 1 will not work.
How to Access the Body Part ID Overrides
STEP 1: Go to the right side-panel and select Info .
STEP 2: Click three dots next to body parts.
STEP 3: Click Override Body Parts.
STEP 4: The Override Body Parts pop-up will appear.
To override a body part, simply tick the check box beside its corresponding ID. To remove the override, just untick the same box.
Click the Preview button on the upper-right to see the changes.