You'll be much better off copying the entire text to an editor like UltraEdit, making your changes and including the tabs, and then copying the content back to the browser. The header is used at the top of the table. If you don't use a percent sign, it'll be sized by pixels. Again, separate each column with a tab. Wraps it all up.
Every article starts off with a series of dot commands in precise order.
Here are some of those dot commands. Refer to previous articles for the proper formatting. This is used in the scan process to identify articles that are departments for the Table of Contents. This is used in the scan process to identify articles that are features for the Table of Contents. This is used in the scan process to identify articles that are listed as other articles on the Table of Contents.