XDJ RX2 USING SAMPLER IN STANDALONE MODE

Hey! I see that I can use sampler when connected to my computer in performance mode. I wonder if there's any way I can designate samples to the pads of the hardware and be able to use it in standalone mode too. For example, when I play at a club I would like to play in standalone mode- and still be able to use Siren/horn and my dj tag as samplers, without having to use my computer.