Updating 1P extension without remove the "Password for Safari" application.

Hello ronen! 👋

Thank you for the questions! I'll respond below:

Is there a keyboard shortcut to fill 1P login and password ?

You can use Command-Backslash to fill your logins into websites open in Safari. Make sure that Universal Autofill is setup: Use Universal Autofill in apps and browsers on your Mac

Is it possible to update 1P extension without remove the "Password for Safari" application ?

You don't need to remove and then reinstall 1Password for Safari in order to update it. This guide will help you make sure that 1Password for Safari updates automatically: How to keep 1Password up to date in your browser

Let me know if I misunderstood your questions. 🙂

-Dave