Select desired tab:

Preferences - Editor

Use this panel to configure your MATLAB M-File Editor preferences.

	Choose the font to use in new MATLAB M-File Editor documents.
	Choose the font size to use in new MATLAB M-File Editor documents.
	Set the number of spaces that a tab represents in the MATLAB Editor.

	Set the font style as bold in new MATLAB M-File Editor documents.
	Set the font style as italic in new MATLAB M-File Editor documents.
	Turn on automatic indenting in the MATLAB M-File Editor.
	Turn on smart indenting in the MATLAB M-File Editor.
	Turn on the line number display in the MATLAB M-File Editor.
	Turn on the M-File Editor Window Toolbar.
	Substitute spaces for tabs in the MATLAB M-File Editor.

	Display the current M-File Editor.
	Select an editor of your choice to use in place of the Built-in MATLAB Editor.
	Use the Built-in MATLAB M-File Editor.

	Accept all changes to all tab panels and close the window.
	Cancel all changes to all tab panels and close the window.