The Tools panel can be docked or floating, on show or hidden, depending on your preference.
The Tools panel can be customised to fit your individual way of working. By removing tools, you can slim down the Tools panel and add available tools when needed.
For future selection, the named preset you save will be shown in the same sub-menu as the above command.
The Tools panel is reset back to its default.
If the number of columns is two or more, the Tools panel will also display colour selectors. These are similar to those which appear on the Colour panel and Swatches panel.