On the menu bar click Tools > Global Options.
Expand Helper Applications.
Click HTML Editor.
Select this check box and the HTML editor will add line breaks at the right end of long lines, so that you can see entire lines of Code without scrolling to the left or right.
Clear this check box and the HTML editor will use line breaks where you add them. You might have to scroll to the right to see the ends of longer lines of code.
Select this check box to display numbers at the beginning of each line of code. If word wrap is enabled, the numbers will only display after line breaks you have entered. The line numbers are not saved as part of the document.
Clear this check box and no line numbers will be displayed.
This check box is only available if Enable word wrap is cleared.
Select this check box to allow the cursor to keep moving to the right after the last character in a line.
Clear this check box to force the cursor to return to the left end of the following line after the last character in a line.
If you disable Allow editing beyond the end of line, you can still add more characters after the right-most character.
Enter the number of spaces you want the cursor to move to the right when you hit the Tab key. You can choose from 1 to 32.
Click this button to open a window where you can change the HTML code and text that is generated automatically when you start a new document in the HTML editor. When you have finished making changes, click the CLOSE button.
Click this button to open a dialog where you can choose the type, style and size of the font displayed in the HTML Editor. When you have made your selections click OK, or if you don't want to change the font click Cancel.