X_COLUMN_USAGE is a [fixed lexicon] with the following values:\\

%%zebra-table
||Saved\\Value||Displayed Value
| OB | Obsolete             | 
| PL | Pre-Loaded           | All High Line supplied values will have this set
| UC | User Defined Column  |
| UF | User Defined Formula | See [USER_FORMULA_COLUMN] for usage and samples
%%