To get this dialog you should click “Preferences” from “Edit” menu or click “Preferences” button from “Main toolbar”.
File associations: Here you can set file associations similar (but simpler) to setting file associations with Windows Explorer. If you are a network user (LAN) you probably won't have the "rights" to set these unless you can login as Administrator.
It can have effect when you double click on a file name in Windows Explorer or select “Edit” from the popup menu shown when you right click the file name.
Text Editor section.
Here you can define the “Text Editor” options.
Note! If you don’t want to highlight the active line or book-marked line select color ”None”.
Code Coloring section.
If you’ve made many changes in the models and want to return to initial state of highlighting pattern, just click “Use Default For All” button to revert all changes.
Preview in Browser section.
Here you can add (by clicking plus button), remove (by clicking minus button) or edit (by clicking Edit button) predefined browsers.
By checking “Primary browser” or “Secondary browser” you predetermine the shortcut for browsers (Ctrl+F12 or Shift+F12).
Here you can also define the regime of previewing.
To get this section you can also click “Edit Browser List” from “File” → “Preview in Browser” menu or by clicking “Edit Browser List” from “Main toolbar” → “Preview in Browser”.
To get this section you can also click “Edit Tools List” from “Tools” menu.
See also other dialogs:
Find & Replace
Send by Email
Insert special character
Customize date/time format