Named sets of configuration parameters and cycle through feature

See the SketchUp 2021.0 release notes section “Live Component Configuration” that explains that LC configuration is native to SketchUp 2021 and higher.

So the quick answers to your question:

  • Yes with SU2020 you must configure in 3DW.

  • No, with SU2021+ you can d/l and configure within SketchUp
    and re-configure anytime by double-clicking LCs.

Live Components are still a cloud-driven feature. You need a “live” internet connection to drive the configuration dialog. Viz: