6. Filtering AssetsUse the 
Assets Palette Filters to change which assets are listed. Select an item from the list and the appropriate Tool is auto-selected in the 
Tools Palette.
Selecting a Scenery or Spline Object will enable the 
Placement Tool, while selecting a Ground Texture will enable the 
Brush Tool.
With thousands of assets installed locally, the Assets Palette provides powerful filters so that you can find exactly the content you're looking for.
There are many different ways to narrow down your selection, but we suggest you start by choosing one of the 7 Pre-set Category options. 
Just click on one of the icons (which relate closely to the Classic Tool Tab asset groupings), then use the 
Search field to narrow down the listed items to just those assets containing the text string you enter.