Hiding and showing materials in Sketchfab using JavaScript

In a previous video I explained how to control a Sketchfab 3D model using the JavaScript API. In this video we go a step further to control the visibility of different materials by using buttons to hide and show different parts of the 3D model.
Model used in the example: sketchfab.com/3d-models/lays-...
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Favourite Moodle themes
Edwiser REMUI - ricoshae.com.au/edwiser-239i
Adaptable - moodle.org/plugins/theme_adap...
Moove - moodle.org/plugins/theme_moove
Plugins
Edwiser - Rapid Grader- ricoshae.com.au/kd8h
Design software
Affinity Designer 2 - affinity.serif.com/en-us/desi...
Affinity Photo 2 - affinity.serif.com/en-us/photo/
Screen capture software
Screen flow by Telestream - ricoshae.com.au/i7m4
Most used online services
Canva - Design application - ricoshae.com.au/x6fa
Free pix - Photos and vector images - ricoshae.com.au/3ro0
Tech that I use
Laptop - MacBook pro - ricoshae.com.au/a-esth
Monitor - Dell U2720Q UltraSharp USB-C 27 Inch 4K UHD (3840x2160) Monitor - ricoshae.com.au/a-ccud
Microphone - Rode NT USB - ricoshae.com.au/a-adkf
Microphone - Shure MV7X XLR - ricoshae.com.au/a-bxcg
Audio interface - Claret 8 Pre - ricoshae.com.au/a-58d7
Camera - Sony a33600 - ricoshae.com.au/a-iaag
Programming tools
Sublime Text - ricoshae.com.au/b8m3
Github - ricoshae.com.au/2oe5