Wherever you are working in Ability, whether in Write, Spreadsheet or Database, you will often find it useful to insert fields. Various types of field are available and some of them are common to all the applications. Among the options there are fields for date and time, page number, formulas, mail merges, database lookup, linking, and others. Moreover, when inserting fields you can also control their appearance and content and how they will be editable, using the various format and control type options (see Control types).
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