Hello,
I have a lot of MP3 to tag, and it's kind of annoying to select everytime "Discogs" after clicking on "tag source".
Is it possible to set a default tag source (in my case Discogs), and be able to fetch the tags with a simple combination on the keyboard (for example CTRL + T)? The CTRL+T would do the same as selecting "Discogs" in the list.
Thanks 
I think that MP3tag already remembers the last web source that you used: just click on the web source button in the toolbar.
Actually, this button doesn't ask me the title, and take into account the folder name, and every time I get a "401: UNAUTHORIZED" error.
There are 2 buttons: one that is just a button and says something like "discogs (quick)" and another one with a dropdown list button next to it. If I click on the icon button (not the arrow), the I get called the last web source in all its beauty including the query dialogue for further parameters.
Find something useful there ...
[F] Discogs - Error >> 401 : UNAUTHORIZED
... and even more ...
https://www.google.de/?gws_rd=ssl#q=site:mp...+401+web+script
DD.20170507.1636.CEST
Yes, I already saw that, but my problem was not the 401 error, it was that I couldn't precise the name I wanted.
But my problem was solved thanks to ohrenkino's last reply
Thanks to you, ohrenkino!