Making a text editable in Ad Hoc Correspondence In Composition Center you can make text fragments included in the document definition editable, and thus let the end-user edit the corresponding text in Ad Hoc Correspondence. This applies to embedded texts as well as to text resources. To make a text editable in Ad Hoc Correspondence 1 In Composition Center, open the document definition. 2 In the Document definition view, click the text in the document definition tree. 3 On the Properties tab, General area, select Ad Hoc. 4 Click Save.