This example added a workstation setting for the Monograph Parts Grid Preferences grid: https://bugs.launchpad.net/evergreen/+bug/1975852

If the Save Grid Settings option doesn't appear at all, it likely needs to have a persistKey assigned.

<eg-grid #partsGrid idlClass="bmp" [dataSource]="gridDataSource"
    [sortable]="true" persistKey="catalog.record.parts" hideFields="label_sortkey,deleted,record" class="mt-3">

An easy way to determine what the missing setting should be called, check your browser console for the error that appears when you click on Save Grid Settings. It should say something like:

Error saving columns: No user or workstation setting type exists for: "eg.grid.catalog.record.parts".

Update file: Open-ILS/src/sql/Pg/950.data.seed-values.sql

INSERT into config.workstation_setting_type (name, grp, datatype, label)
VALUES (
    'eg.grid.catalog.record.parts', 'gui', 'object',
    oils_i18n_gettext(
        'eg.grid.catalog.record.parts',
        'Grid Config: catalog.record.parts',
        'cwst', 'label'
       )
);

New file: Open-ILS/src/sql/Pg/upgrade/XXXX.data.monograph_parts_grid.sql

Don't worry about trying to predict what the next sequential script number will be, just use "XXXX" and the core committer will update it at commit time.

BEGIN;

-- SELECT evergreen.upgrade_deps_block_check('XXXX', :eg_version);

INSERT into config.workstation_setting_type (name, grp, datatype, label)
VALUES (
    'eg.grid.catalog.record.parts', 'gui', 'object',
    oils_i18n_gettext(
        'eg.grid.catalog.record.parts',
        'Grid Config: catalog.record.parts',
        'cwst', 'label'
       )
);

COMMIT;