Video Tutorial by Spline:

https://spline.design/tutorials/VSddFnDjPUA-how-to-design-and-use-components-in-3d-with-spline

https://www.youtube.com/watch?time_continue=40&v=VSddFnDjPUA&embeds_referring_euri=https://spline.design/&source_ve_path=Mjg2NjY&feature=emb_logo

How to Design and Use Components in 3D with Spline

Step-by-Step Breakdown by Yours Truly:

  1. Select Objects (in Outliner or 3D Viewport)

    Screen Shot 2024-04-18 at 12.07.10 PM.png

  2. Right Click and Select Create Component (Command / CTRL + Shift + K)

    Screen Shot 2024-04-18 at 12.12.05 PM.png

  3. Duplicate Component (Ctrl + D)

  4. To Create 2nd Instance: Duplicate First Instance (Ctrl + D)