SwiftUI - How to add a screen to a section of segmental control - swift

Question

I have coded a currency converter page, however I want to add this converter to a section on a segmented control. How can I add this page to one section in a segmented control so one section of the control is currency conversion and then when I click on the other section it will take me to another page?
import SwiftUI
struct ContentView: View {
#State var input = "100"
#State var base = "USD"
#State var currencyList = [String]()
#FocusState private var inputIsFocused: Bool
func makeRequest (showAll: Bool, currencies: [String] = ["USD", "GBP", "EUR"]) {
apiRequest(url:
"https:api.exchangerate.host/latest?base=\(base)&amount=\(input)") { currency in
var tempList = [String]()
for currency in currency.rates {
if showAll {
tempList.append("\(currency.key) \(String(format: "%.2f", currency.value))")
} else if currencies.contains(currency.key) {
tempList.append("\(currency.key) \(String(format: "%.2f", currency.value))")
}
tempList.sort()
}
currencyList.self = tempList
print(tempList)
}
}
var body: some View {
VStack {
HStack {
Text("Currencies")
.font(.system(size: 30))
.bold()
Image(systemName: "yensign.square")
.font(.system(size: 30))
.foregroundColor(.black)
}
List {
ForEach(currencyList, id: \.self) { currency in
Text(currency)
}
}
VStack {
Rectangle()
.frame(height: 8.0)
.foregroundColor(.black)
.opacity(0.90)
TextField("Enter an Amount", text: $input)
.padding()
.background(Color.gray.opacity(0.10))
.cornerRadius(20.0)
.padding()
.keyboardType(.decimalPad)
.focused($inputIsFocused)
TextField("Enter a Currency", text: $base)
.padding()
.background(Color.gray.opacity(0.10))
.cornerRadius(20.0)
.padding()
.focused($inputIsFocused)
Button("Convert") {
makeRequest(showAll: true, currencies: ["DKK", "SEK" ,"NOK"])
inputIsFocused = false
}.padding()
}
}.onAppear {
makeRequest(showAll: true)
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View{
ContentView()
}
}
`
I built the segmented control separate to the converter, however one was built with SwiftUi and the other was built using storyboard, so How can I combine the two?