When you import models to a workset and want them displayed only in the current workset to avoid interference with other worksets, you can move models to the same layer and set "Visible to this workset only". In this way all models in this layer will only be displayed in the current workset and will not appear in other scenes.

Example

If you have added a "tree" to the environment workset, but this tree is only relevant to your own scene, you can create a "Visible to this workset only" layer for objects of this kind.

This ensures that models in the "Visible to this workset only" layer are displayed normally only in the current workset and do not affect other worksets.