After copying a bunch of download links. I find myself constantly having to click "add paused" button, then select the new urls and validate them.

Wouldn't it be nice if there's a button next to "add paused", or simply "add paused & validate"?

No, it wouldn't. We wish to keep FRD's UI simple as possible. This button wouldn't be useful for 99% of users.
Simple press Add paused and then Ctrl+W.

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