Create 2D animation without controller or model

Unity Engine
1

Is there a way I can create an animation, select few frames of spritesheet and put it inside?

No controllers, no need to have it on gameobject in scene, etc.?

Just create 2D animation from spritesheet in few seconds and save all the additional hassle?

2

For anyone in future reading this, after 10 hours of googling frustration, I tried this tool and it worked for me.