[kicad-users] How to insert a track on both sides of the PCB?

[thomaswest24]

For higher current I need to add a track between 2 pins on top and on 
bottom layer to double the possible current. But in my version of 
PCBNew this is not possible. 
First I draw the track on the top layer and all is OK. Then I switch 
to the bottom layer an draw the same track between the same pins. 
When this operation is finished the track at the top layer will be 
deleted automatically.
My version of PCBNEW is 20080429-r1010.