✏ EDIT AIRPORT DB
Edit CSV directly. Two sections separated by a blank line: airports, then airline alternates. Changes saved to browser storage.
FIND:
Columns: icao, name, province, country, remarks, rwy, eqp, dh_agl, vis, num_ils, alt_ht, alt_vis, can_std_ld, can_std_vis
AIRLINE PREFERRED ALTERNATES
airline → destination → preferred alternate ICAO