At each outline title of the text, insert the cursor, and insert the table of contents item field through "Insert-Field-Index and Table of Contents -TC" on the menu, and fill in the corresponding English title in the text item of the field attribute to specify an outline level.

Insert the cursor where you want to insert the directory, and then insert the directory through "Insert-Reference-Index and Directory". When inserting a Chinese catalog, do not check the "Catalog Entry Field", but when inserting an English catalog, you need to check the "Catalog Entry Field" and check the "Style". The location of the directory entry field is: Insert-Reference-Index and Directory-Options-Directory Entry Field. In this way, Chinese and English directories can be generated separately.

If you want to see the contents of the inserted English title when editing the contents of the table of contents, you can do so by opening Show/Hide Edit Markup or Tools-Options-View-Format Markup-Hide Text on the toolbar.

The text format of the table of contents can be changed. Insert-Reference-Index and Table of Contents-Table of Contents. Select "From Template" at the bottom of the dialog box, and "Modify" in the lower right corner is available. Click to enter another dialog box. In this dialog box, select the directory level you want to modify, and click Modify to enter another dialog box, where you can modify it as needed. If you need to modify the format, you can click "Format" in the lower left corner of the dialog box.

If English is originally lowercase, the directory will become uppercase after it is generated, just tick off the check box of uppercase and lowercase letters.