How can i test different game icons with the new ads manager?

I would like to test the ctr of different icons using the ads manager, but there is no way to add 2 icons into a single campaign, or am i missing something? Would i need to create multiple campaigns to test the ctr of different icons?

sped all your robux and then stop the ad at 12 hours and then realease another add and realise you spent all your robux.