add a button to open new tabs easily

I'd be useful to have a button in the upper menubar which opens a new tab. The current place of the control doing that in the context menu of the folder view is not too intuitive.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: dolphin 4:4.14.1-0ubuntu1
Uname: Linux 3.18.3-031803-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Jan 20 11:07:41 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-01-03 (16 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: kde-baseapps
SystemImageInfo:
 current build number: 0
 device name:
 channel: daily
 last update: Unknown
UpgradeStatus: No upgrade log present (probably fresh install)