6. Import the downloaded FBX motion into Maya
File > Import and Select "Update Scene" in the FBX import plugin and check the "Fill Timeline" to update the timeline of your scene. Select all the joints of the updated FK skeleton and select all the imported keys. Select the corresponding FK joints in the original FBIK rig and paste the keys.

1. Export FK skeleton from Maya FBIK
Select the FBIK FK skeleton (starts with node hipsFK), make a copy, rename the root joint to the same as the original (hipsFK), and export the newly created FK skeleton hierarchy in FBX format (character in t-pose, default export settings of FBX plugin, Y-up). IMPORTANT: Mixamo only needs the FK joints of your rig. Make sure your character is in t-pose on frame 0 of the scene.

2. Select a motion model
- Mixamo has hundreds of online motions
- Many more being added each week

3. Design & Synthesize Motion
...using built in sliders and controls

4. Upload your FBX model
- If your character is rigged using Maya FBIK or its naming convention it will map automatically

5. Final Preview & Download
- Preview to your heart's content
- Only download when you're satisfied, in FBX format