Toolbars
The Wolfram Language's unified symbolic architecture makes it straightforward to add toolbars with any possible appearance and action to any Wolfram Language notebook.
DockedCells — symbolically specify cells to be docked
AttachCell — attach a floating cell to a part of the notebook or window
SetOptions ▪ ExpressionCell ▪ TextCell
Action Elements
Button ▪ PopupMenu ▪ ActionMenu ▪ Checkbox ▪ TogglerBar ▪ InputField
Display Elements
Dynamic ▪ CurrentValue ▪ Options
Layout & Annotation
Grid ▪ Row ▪ Spacer ▪ Labeled ▪ Text ▪ Tooltip