Hello.
JabRef_windows-x64_5_0-dev--snapshot--2018-11-15--master--81f15e9e6.exe
Windows 7 x64
The option "Quality -> Lookup Full Text Document" doesn't work if you have several entries selected, it doesn't produce any result, it only works if you go one by one.
It would be nice to be able to let Jabref find and download all possible entries at once.
PD: I've tried several times and some of them it pops up a window to download the results, but most often nothing happens.