ONE: 'F3' - Goto field definition in DDM

In the following cases 'F3' on a database field should go to the field definition in the DDM:

- when a field is used as a search field in READ, FIND, HISTOGRAM
statements
eg. READ VEHICLES BY MAKE /* 'F3' on MAKE

- when a field is defined in a data view
in the DEFINE DATA LOCAL part of a program or in a Data area, eg.
DEFINE DATA LOCAL
1 VEHI-V VIEW OF VEHICLES
2 MAKE /* 'F3' on MAKE
...
END-DEFINE