Release 10.1A: OpenEdge Development:
Progress 4GL Handbook

Adding columns to a static browse

You can use the ADD-COLUMNS-FROM, ADD-LIKE-COLUMN, and ADD-CALC-COLUMN methods to add columns to a static browse as well. Such a browse automatically becomes a NO-ASSIGN browse, just as a dynamic browse is.

You can also modify the query of a browse at run time, including the query of a static browse. If the query navigates a table with the same field list as the original query, you can change the query without any visible effect, other than to substitute one set of records for another. There is no need to rebuild the browse. However, if the field list in the table managed by the query is different from the previous query, Progress clears the browse column list and you have to rebuild it using the dynamic methods.