Problem:
When i first started using Jabref I vividly remember that i could not find the add groups button immediately, because i first found the Groups and Filter groups field and naively thought, the add groups button must be close to that. Or to say it differently: The Add group button is so close to the Web search panel, that on first glance it will be associated with it. Try to look at Jabref from a far distance and you might see what i mean.

Desired Solution:

Move the Add group button somewhere closer to groups.

Maybe it could be

• Between Filter groups and All entries.
  OR
• Between Groups and Filter groups
  OR
• Beneath the last group

Additional context