In 'manage wallets' I cannot verifying the passphrase, why?

[serrq]

This action is helpful to discover copying/pasting errors. If there are.

For example if I, involuntarily, copy another passphrase and apply it to another wallet due a temporary mental confusion.

In this way I could controlling the two strings (the one in the UW and the other one in my password manager) and compare them.

Currently I cannot do this control, if not through other ways.

[serrq]

Even better if you built-in a string comparator (in the same tab).

I could putting my password manager passphrase in the dedicated field and push on "compare", and UW provide me a result.

1. Yes, the strings are the same.
2. No, the strings aren't the same.

In the case (2) it needs of a "copy" passphrase button. So the wallet is not lost, because it means that I haven't securely archived that passphrase.