In the In-Place Text Editor, use one of the following
methods:
Move the cursor over the right end of the ruler until the
cursor changes to a double arrow. As you drag to the right to
stretch the ruler, a tooltip displays the width. Release to set a
new width.
Right-click the bottom of the ruler. Click Set Mtext Width. In
the dialog box, enter the width in drawing units.
To save your changes and exit the editor, use one of the
following methods: