Texture list window context menu
Create New
Creates a new basic blank texture.
                                             Import from Texture Library...
Import from Texture Library...
                                        Imports textures from a saved Rhino .rtex file.
                                                 Paste
Paste
                                            Creates a new item based on the contents of the Clipboard.
                                                 Paste as Instance
Paste as Instance
                                            Creates a new item based on the contents of the Clipboard. The new item will be linked to the original item.
Select All
                                            Select all items in the list.
So you can change the common settings and thumbnail properties of all items.
                                                     Sort Alphabetically
Sort Alphabetically
                                                Lists the items with their names in ascending (A to Z) order.
                                                 Grid
Grid
                                            Displays the previews as a grid of thumbnails.
                                                 List
List
                                            Displays the previews as a list of thumbnails.
                                                 Tree
Tree
                                            Displays the previews as a tree showing nesting.
                                                     Show All Textures
Show All Textures
                                                Displays used and unused Textures.
                                                     Show Only Used Textures
Show Only Used Textures
                                                Hides unused Textures.
                                                     Show Only Unused Textures
Show Only Unused Textures
                                                Hides used Textures.
                                             Horizontal Layout
Horizontal Layout
                                        Displays the previews to the left of the controls.
Thumbnails
                                             Tiny
Tiny
                                        Sets the thumbnail size to the smallest size.
                                             Small
Small
                                        Sets the thumbnail size to the smaller size.
                                             Medium
Medium
                                        Sets the thumbnail size to medium size.
                                             Large
Large
                                        Sets the thumbnail size to large size.
                                                 Show Labels
Show Labels
                                            Displays thumbnail name labels when in Grid mode.
List mode always displays labels.
                                                 Auto-Update Preview
Auto-Update Preview
                                            Automatically updates all previews as settings change.
                                                 Update All Previews
Update All Previews
                                            Update previews manually when Auto-Update Preview is off.