Attempt to set several payment methods

[git-user-9841]

Hi All!
I have a question
I'm sorry I'm writing here
Could you tell me how I can set several payment methods that defined in my account?
For example

• iDEAL (12 banks)
• Bancontact
• CreditClick

In other words

1. customer clicks on the button "Pay"
2. open form containing all available payment methods on https://pay.icepay.eu/basic/
3. customer selects some payment method
4. open selected payment page (eg https://www.abnamro.nl/)

Such scheme was used before

I've updated Icepay and I can't understand how to implement this.
I can set only one payment method and only one Issuer
eg
[
'Amount' => $amount,
'Country' => $country,
'Language' => $lang,
'Currency' => $currency,
'OrderID' => $orderId,
'Description' => $description,
'Paymentmethod' => 'IDEAL',
'Issuer' => 'ABNAMRO',
'Reference' => '1',
]

Thanks a lot for help