I cant find this Rebuild button in Admin lol

[Xencored]

I cant find this Rebuild button in Admin lol

http://www.vbulletin.com/docs/html/album_rebuild_thumbnails

Is it not there anymore?
If no how can i rebuild the sizes

Thanks

am a idiot soon as i posted i found it ;/
But is there anyway to rebuild the sizes?

[snakes1100]

Set the thumbnail size you desire in the attachment options, then run the rebuild.