How to add Bank Account as payment method in connected account using Stripe.js 2?

I want to add a bank account as payment method for customers. It is being added to the Stripe main(platform) account’s customers but I’m unable to add for connected account’s customers. Because, I’m unable to find the parameter to pass “seller/connected account ID” in the “stripe token” element or “convert bank account to stripe token” action.

Is there any way/solution to do it?