Set home position

is it possible to change home position according to local NED not to lattitude and longitude?

According to http://mavlink.org/messages/common#SET_HOME_POSITION “The global and local positions encode the position in the respective coordinate frames”. What shoud i send as a lattitude and longitute if i would like to move home positton in local frame( for exampe 2 m forwad)? I tried 0,0 as a lattituede and longitude but this caused reset home position/