Add Multiple Download links with Preview

FDM should better support add multiple download links from Clipboard instead of the import method.

E.g.

http...test/download.part01.rar
http...test/download.part02.rar
http...test/download.part03.rar
http...test/download.part04.rar
http...test/download.part05.rar
http...test/download.part06.rar
http...test/download.part07.rar
http...test/download.part08.rar
http...test/download.part09.rar
http...test/download.part10.rar
http...test/download.part11.rar

To add link, just copy all links to clipboard, press the 'Add' button from Free Download Manager and an "Add Downloads" window prompt out with 11 detected downloads. It should detect if the download link is valid(online) or invalid (offline), allow me to tick or untick which download I wanted to add to the download queue and confirm.

Optionally,