Paste URLs into attachments opens URL Upload dialog

Am adding images from URLs to a bunch of records in a table.

Current Steps

1. Copy URL
2. Switch Tabs
3. Click on empty field
4. Click on + icon
5. Click on link icon
6. Paste URL
7. Click Upload

Proposed Steps

1. Copy URL
2. Switch Tabs
3. Click on empty field
4. Paste URL, if it resolves to a ‘valid attachment’, show upload confirmation
5. Click Upload