The Alias list is limited to the most common field names to change, that field name can be change but would need to be changed in the backend supporting table for the a Alias.
That same table handles over 900 of the field names in FMDesktop and making changes to the wrong field in that table would affect all the workstations. Making changes to the backend DB you always run the risk of corrupting the data.
A back up copy should be made before any changes are made.
If you are comfortable working in the backend of database the table which list all the Alias is easy to locate, and the Field_Name is called Title for All Form_Name and All Table_Name , as some Alias Fileld are only for certain forms or tables. Make the change the Alias field for the correct record, restart FMDesktop and you should see the change.
If you are not comfortable with working in the backend of the database you may want to contact your reseller or a consult who works with FMDesktop.
smk
Autodesk Consulting
AEC Division
Stephen M Komisarek
Technical Consultant