I don’t need to change the password for expired entries. Thus I mark outdated entities.
There are a lot expired entries and I cann’t change each one for Kee.
I assumed as much and was trying to explain why this feature is not implemented (it would not be useful for the majority of users).
Have you considered moving your expired entries to a different group? You can configure Kee to use entries of a single group only (https://forum.kee.pm/t/is-there-a-way-to-hide-groups-from-kee/1418)
But the longer I think about it you could request a feature to alow editing the Kee-Tab of multiple entries in KeePass at the same time. With this you could easily hide multiple entries at a time.
EDIT: Also I guess you could use the XML Replace feature of KeePass to automatically set all expired entries to be hidden from KeePass