Hi Pawel,
This version is not supported, so you can manually add the needed methods directly to XML file of the plugin.
Open /plugins/pcp/stripeco.xml and find there this piece of code:
<field name="payment_methods"
type="list"
multiple="true"
default="card"
required="true"
label="PLG_PCP_STRIPECO_FIELD_PAYMENT_METHODS_LABEL"
description="PLG_PCP_STRIPECO_FIELD_PAYMENT_METHODS_DESC"
layout="joomla.form.field.list-fancy-select"
>
<option value="card">Card</option>
<option value="ideal">iDEAL</option>
<option value="bancontact">Bancontact</option>
<option value="eps">EPS</option>
<option value="giropay">giropay</option>
<option value="p24">Przelewy24</option>
<option value="sofort">Sofort</option>
<option value="alipay">Alipay</option>
</field>
You can add to the end of the list the payment methods you need. For example for Paypal and Klarna add these two options:
<option value="paypal">PayPal</option>
<option value="klarna">Klarna</option>
Like this:
<field name="payment_methods"
type="list"
multiple="true"
default="card"
required="true"
label="PLG_PCP_STRIPECO_FIELD_PAYMENT_METHODS_LABEL"
description="PLG_PCP_STRIPECO_FIELD_PAYMENT_METHODS_DESC"
layout="joomla.form.field.list-fancy-select"
>
<option value="card">Card</option>
<option value="ideal">iDEAL</option>
<option value="bancontact">Bancontact</option>
<option value="eps">EPS</option>
<option value="giropay">giropay</option>
<option value="p24">Przelewy24</option>
<option value="sofort">Sofort</option>
<option value="alipay">Alipay</option>
<option value="paypal">PayPal</option>
<option value="klarna">Klarna</option>
</field>
The full list of payment methods is available here:
https://docs.stripe.com/api/payment_methods/object#payment_method_object-type
Kind regards,
Dmitrijs