To modify the Message List window, edit the appropriate files as follows:
To customize how the message list appears, edit the ListFrameHTML() function in the mbox_fs_lr.html file.
To change the text of default column heading, edit the i18n[] values for search results, date, from, to, size, and subject in the lang/i18n.js file.
To change the text on the “Collect External Mail” button, edit i18n[’collect long] in the lang/i18n.js file.
Functionally, the listFrameHTML() function links the “Collect External Mail” hyperlink to collect() in main.js. An example of such a linking is shown in - Message List Window Modifications