Right-click on empty gray part of TOOLBAR area

you will see the available TOOLBARS list

Uncheck all the toolbars except LAYERS, MANAGE LAYERS, and MAP NAVIGATION

You will see fewer options on the TOOLBAR AREA (Manage Layers by default is vertical down the left side)

Click on the TOOLBAR handle (gray dots on left or top edge of a toolset) to enable MOVE control. Drag the TOOLBAR handle to any open space on TOOLBAR AREA and let go

Now the user interface will be reset. Notice that the number of visible toolset items depends on the available screen-size. Click on the double-right bracket at the right or bottom of any toolset to see the complete list of tools available for any toolbar.

Now right click on the TOOLBAR area and uncheck the LAYERS toolbar, you will see the LAYERS toolbar hidden and the MAP AREA expand to the width of the window

Right click on the TOOLBAR area and check the LAYERS toolbar to turn it back on

You can now turn ON and OFF the toolbars you want to use, and reposition them in the TOOLBAR AREA, as well as HIDE or SHOW the LAYER LIST toolbar. Instead of right-clicking on the TOOLBAR area, you can access the same functions from the Menu: VIEW | TOOLBARS

Now proceed to the section on ADD DATA, PAN, ZOOM, IDENTIFY