How I add collisions to my character Blueprint?

I have a character blueprint that is a dog, but the default capsule collision it’s not good for the mesh. I had search in Internet and I only had discover that the default capsule collider it’s imposible to change or delete so, there are another form to add collisions to my character blueprint??

In the character class, you can’t delete the default capsule collision as it is needed for movement component.

The component which defines collision is always the root. So you could simply change the base class to Pawn and then add some code to set your skeletal mesh as the root component.

Of course first you need a Physics Asset where you create your skeletal collision.

But i don’t want that my skeletal mesh has a the function of collider. I want to put one or more boxcollider to my character (or pawn).
I tried to do a pawn as a character, but the movement didn’t work and there’s no gravity. Are any tutorial about how to use a pawn like a character??