You can use the Quick Tag Editor to edit an HTML tag in your document.
You can also select the tag you want to edit from the tag selector at the bottom of the Document window. For more information, see Editing code with the tag selector.
The Quick Tag Editor opens in Edit Tag mode.
By default, changes are applied to the document when you press Tab or Shift+Tab. To disable the automatic updates, select Edit > Preferences > Quick Tag Editor or Dreamweaver > Preferences > Quick Tag Editor (Mac OS X). The Quick Tag Editor Preferences dialog box appears. Deselect the Apply Changes Immediately While Editing option and click OK.
For more information, see Setting the Script dialog box options.