columns are shared with other developers who have access to the site by selecting the column name and clicking to remove the check mark in the Enable Column Sharing box. _ You can delete any of the custom columns (you can not delete default columns) by selecting the column name and clicking on the minus sign at the top of the dialog box. _ You can rename custom columns as you would edit a filename. _ You can associate Design Notes with custom columns by selecting the column name and using the drop-down list next to Design Notes. Enabling Contribute features Macromedia Contribute is a program that was created so that people who dont know much about Web design can easily contribute to a Web site. Think of Contribute as sort of a Dreamweaver Light, except that it doesnt work very well as a stand-alone program. Contribute was designed to work on sites designed in Dreamweaver, and a number of features have been carefully integrated to make that collaboration work smoothly. If youre working with other developers of a site who use Contribute, make sure you check the box next to Enable Contribute Compatibility in the Contribute category of the Site Definition dialog box. Figure 4-21: You can change the display options for the Files panel in the File View Columns category available from the Site Definition dialog box. Chapter 4: Coordinating Your Design Work 121 Remembering Your History You can keep track of what youre doing and even replay your steps with the History panel. The History panel also lets you undo one or more steps and create commands to automate repetitive tasks. To open the History panel, shown in Figure 4-22, choose Window?History. As soon as you open a file, the History panel starts automatically recording your actions as you do work in Dreamweaver. You cant rearrange the order of steps in the History panel, but you can copy them, replay them, and undo them. Dont think of the History panel as an arbitrary collection of commands; think of it as a way to view the steps youve performed, in the order in which you performed them. This is a great way to let Dreamweaver do your work for you if you have to repeat the same steps over and over again. Its also a lifesaver if you make a major mistake and want to go back one or more steps in your development work. Heres a rundown of how you can put the History panel to use: _ To copy steps you already executed: Use the Copy Steps option as a quick way to automate steps you want to repeat. You can even select steps individually, in case you want to replay some (but not all) your actions exactly as you did them. _ To replay any or all the steps displayed in the History panel: Highlight