re #3768

add arrows for moving

git-svn-id: svn://develop.studip.de/studip/trunk@31119 c5b85792-5220-0410-ad23-ed5b6b8ad999
adjust tests according to changes [31119], re #4506

git-svn-id: svn://develop.studip.de/studip/trunk@31120 c5b85792-5220-0410-ad23-ed5b6b8ad999