React-Hook-Form conditional fields in a map function - reactjs

Question

I'm curious if anyone has used conditional fields in react-hook-from but within a map function. I've got the basic rendering happening, but since it is in a list and they all refer to the same .map() criteria, it is populating the conditional input for all fields, regardless if they are checked. Heres the basic idea for using conditional fields in RHF: https://codesandbox.io/s/react-hook-form-conditional-fields-qgr41
Heres what I've got so far:
{goals && goals.map((goal) => (
<>
<FormControlLabel
control={
<Switch
key={goal.title}
//id..? marked? title?
{...register('marked')}
name='marked'
value={goal.marked}
/>}
label={goal.title}
/>
<br />
{marked && (
<>
<Input
key={goal.title}
{...register('goal.note')}
id="note"
type='text'
label="Progress Note"
name="note"
onChange={(e) => {
e.target.value = e.target.value
}}
/>
<br />
</>
) }
The problem is that from the UI side, when I toggle the switch (or mark a checkbox), that all the fields populated in the map are referring to the same prop in the switch, 'marked'. So when toggling for 1, it populates the additional input field for all elements in the map function.
An additional issue I have yet to look into is passing the data for the individual fields to the data collected by the form for the submit. Right now, my assumption is that all fields would be treated as one value, since the form is recognizing them all together. So ideally if one item in the map is toggled and additional info is provided, then only those values are passed to the form for the submit, rather than all fields (toggled or not) being passed.
UPDATE
So I got the toggle functioning by creating a child component in order to more easily manage the state of the toggle, and leveraging the index within the props so the browser would not treat each conditional field as the same:
parent component:
{goals && goals.map((goal, index) => (
<GoalInput
goal={goal}
index={index}
register={register}
control={control}
errors={errors}
/>
new child component:
function GoalInput({ goal, index, register, control, errors }) {
const [toggle, setToggle] = useState(false)
return (
<>
<FormControlLabel
control={
<Switch
key={index}
{...register(`goals.${index}.marked`)}
checked={toggle}
name={`goals.${index}.marked`}
value={toggle}
onChange={() => setToggle(!toggle)}
/>
}
label={goal.title}
/>
<br />
{toggle ? (
<>
<Controller
control={control}
name={`goals.${index}.note`}
id={`goals.${index}.note`}
render={({field}) => (
<Input
type='text'
index={index}
error={!!errors.note}
value={field.value}
onChange={(e)=>field.onChange(e)}
label="Progress Note"
/>
)}
/>
<br />
</>
) : <></>}
</>
)
}
So the toggles work independently, appropriately record whether the value of the toggle is true/false, and the subsquent conditional input in being tracked as well. Still have some struggles with the data being passed correctly through to the backend, but that is another issue. Hope this helps anyone coming along.