F7 store reactivity and deep nested objects

Questions
1

Hi,
I am looking for a better way to make a deeply nested object reactive with the F7 store and F7-Vue

This is my state:

    level: {
        idk:{
            something:true
        }
        floor: {
            p1: '1',
            p2: '2',
            p3: '3',
        }
    }

This is the action

state.level = Object.assign({}, state.level, {
    floor: {
        ...state.level.floor,
        p1: 15
    }
});

And this I the getter

p1({
  state
}) {
  return state.level.floor.p1
},

I think and hope that there is a better way to make the getter “p1” reactive, but at the moment I have only found this one.
Thanks