Originally Posted by paola
EDIT: no you can't as you are also missing the percentage sign, unless it is in the part of keyboard revealed by suing capitals, as rkomar suggested.
It is. It's the same URL-specific keyboard that my pbdownload program uses. The shift/caps lock key gets you the underscore, percent and ampersand keys (along with capital letters). I think your percent idea would work, too, but makes less sense when the underscore is also available there.