Trigger Blendspace

Hello,i have a noob question. I have a character which is just an actor in the scene(not the player) it has two animation states(skeletal). One animation is idle(loop) and one is an Action(character shows a map). i want to trigger this second animation by entering a trigger box. Its works fine but the transition is too edgy, how can i do this transition smooth ? i tried to record the blendspace, but its not working well. Any help would be very much apriciatet.