Click on both ears headphone

Hi guys,

I use a MPC Live on stage with my band. The Live plays the backing tracks. On 1 track there is a click for the drum player. All track are send by output 1&2. The click track by output 3.

The drum player connects his headphone directly on the MPC Live. The problem is he hears the click track just in 1 ear. To use 2 outputs is not possible, because the headphone has just 1 plug. I tried a splitter, but also that doesn't work. Is it possible to send a track to 1 output, but send in 2 channels (so you can hear in both ears the click)?

instead of the click, make an extra track with a sample like a click. Then route that program with the sample to output 3/4 and connect that to a headphone with a converter (2 jack to one stereo jack)