How to Make Montage play Attack2Anim after pressing button twice?

In UE4 Tutorial series They teached how to play montage both attack1 and attack2 anim after holding LeftMouseButton but i want 2nd attack to play only after i press LeftMouseButton Twice so how to do that? its like if i press button one time first attack supposed to play if press again within some seconds after 1 attack want it to play 2nd attack.