I imported all information as a text file from another application. I got a lot of information as a password. How can I remove all 460 passwords.
Sorry, could you explain a little more? How does this relate to F-Secure?
If you talk about F-Secure Key;
And then you did import with certain text-file (?! from another supported?! password manager) -> as result -> there broken state about entries/passwords under your F-Secure KEY (?!):
I able to suggest something like this:
--> Do backup for your entries/credentials (which only stored under F-Secure Key);
--> Remove your localstrorage-file;
For Windows systems: open "List of installed software" (default steps for system) and find there string like "F-Secure Key: User Data";
Uninstall this string. It will remove all passwords (credentials/account/entries) under your current F-Secure Key installation; And you able to start it from first;
For Mac there available knowledgebase article.
--> If you just want to remove certain "duplicate" or "wrong/mistake" passwords under valid localstorage for your F-Secure Key installation;
Maybe it not possible with common meanings. Required manually (?!) or by tricks perform this (like export -> editing -> import);
But I able to suggest contact F-Secure Support Channels:
about potential 'broken' import feature with certain example-situation;
// if you talk about something else.. good to clarify it (based on previous reply);