First, preferences have to be set…

1. On the search screen, click edit
2. Click preferences
3. Click color and fonts
4. On the default code chart, from the menu of alphabets, choose Latin 1 – supplement

Then, in the bibliographic record…

1. Place the cursor where you want to insert a character
2. Click tools
3. Click character map
4. Find the letter you want and click on it
5. Click insert
6. Click close

If you would like to create macros for commonly used diacritics, please refer to the Macros manual.