Balsa allows you to change the layout of the toolbars on the three main types of window: the main window, message windows, and compose windows. You open the dialog with the Settings Toolbars… menu item.

The dialog contains a notebook with a page for each type of window. On each page, you'll see a Preview of the toolbar, which changes as you change the layout. The list of Available buttons shows buttons that may be used on the toolbar, but aren't currently used, and the Current toolbar list shows the current layout, including both buttons and separators. You can add buttons to the current toolbar, remove them, or move them up or down in the list, using the controls in the central button box.

Une case à cocher pour introduire un saut de ligne dans le texte des étiquettes de boutons (s'il y a lieu) est placée au dessous des onglets. Cette option concerne les barres d'outils des trois types de fenêtres. Si vous cochez la case, les étiquettes longues s'afficheront sur deux lignes.

This is an “instant apply” dialog: the changes you make take effect immediately, as shown in the Preview toolbar. Below the Preview toolbar you'll find a button that restores the standard layout for that toolbar.

A second button below the Preview toolbar pops up a menu that gives you control over what is shown in the toolbar: icons, text, or both. The popup (right click) menu for any actual toolbar offers the same choices, as well as the option to open up this dialog (“Customize Toolbars…”).