Tools toolbar
To open a toolbar...
SystemInfo
Reports information about the computer hardware and operating system.
ReadCommandFile
Read and execute a command script from a text file.
ScriptEditor
Opens the Script Editor window for Python and C# programing.
CommandHistory
Open the Command History window.
CommandHistory, Save
Save the Command History to a file.
FileExplorer
Opens the File Explorer panel that can access any types of files on the computer.
OptionsExport
Save Options settings to a file.
OptionsImport
Restore Options settings from a file.
Toolbar
Opens the toolbar list for you to show or hide toolbars.
Link to Toolbars toolbar
Merges the original toolbars of the selected .rui file and its customized toolbars into a new rui file. 
ExportRuiFile
MacroEditor
Open an edit window for script creation and testing.
Reset
Restores the window layout, toolbars, or all settings to the initial state of the Rhino app.
Opens the Macro Library dialog box to manage the macros in the default toolbars or linked rui files. 
Macros
Opens the Containers dialog box to manage the panels or toolbars in containers. 
Containers
Saves the current arrangement of containers, panels, and toolbars to a new custom Window Layout. 
SaveWindowLayout
Opens the Window Layouts dialog box to list, save, restore, export, or import arrangement of containers. 
WindowLayout
Repeat
Repeat any command or script/macro.
EditPythonScript
Edit a Python script.
PlugInManager
Manages plug-in settings.
Rescue3dmFile
Recovers geometry objects that can be read from a damaged Rhino 3dm file.
History
Store the connection between a command's input geometry and the result, so that when the input geometry changes, the result updates accordingly.
Link to History toolbar
EarthAnchorPoint
Add information about the model's position for GIS mapping applications.
AddGuide
Add temporary infinite guide / construction line.
RemoveGuide
Remove temporary infinite guide / construction line.
ClearAnalysisMeshes
Deletes all surface analysis meshes in the model.
ClearAllMeshes
Delete render and analysis meshes.
Hyperlink
Manage URL addresses attached to an object.
Alerter settings
Enable alerter, watch commands, time, sound, run Rhino commands.
PackageManager
Assists in the discovery, installation, and management of Rhino and Grasshopper plug-ins.
Purge
Delete unused block definitions, groups, layers, hatch patterns, linetypes, annotation styles, and materials.
LayerBook
Moves through the layers of a model sequentially, just like turning the pages of a book or a slide show for demonstration and training.
ReducePointCloud
Removes random points of a specified number from a point cloud.