Auto-fill On Page Load while Vault is locked

I’d like to see an option to enable Auto-fill On Page Load even when my Vault (browser extension) is locked.
My master password is very long and secure and I can’t type it every time I start my browser.
What about an optional auto-fill password (which is easier to remember) that doesn’t unlock my Vault (you can’t see your passwords) but when you browse, the extension recognizes the website and fills the fields automatically?

If you don’t unlock your vault the extension doesn’t know the passwords so cannot ‘fill’ them.