Creature evolve

Ive had it happen to me many times where i click on evolve and lose a ton of coin and dna that i would need for a hybrid.
Make it soo that either the button doesnt chznge from fuse(for hybrids) into evolve when u have the required dna or give the option to undo the evolution if u didnt want it, but with a limited time on that option.
Or both.