Cascading combo boxes in base

Good day,
Is it possible to do a cascade combo box in Base (e.g. when I select a zip code from the dropdown list a second line will allow me to select only from cities in that zip code). Selection must then be stored in database. Can’t find any tutorials on it.

https://forum.openoffice.org/en/forum/viewtopic.php?t=46470
https://forum.openoffice.org/en/forum/viewtopic.php?t=94393