Stripe plugin installed, published but not showing in Payment Methods

-- HikaShop version -- : 3.1.1
-- Joomla version -- : 3.7.2
-- PHP version -- : 7.1.4
-- Browser(s) name and version -- : Safari 10.1.1

Hello

I just have installed the Stripe plugin, found it in the Joomla plugin section (because I initially did not see it under Payment Methods) and enabled it in the Joomla plugin section.

It still does not show in Hikashop Payment Methods.

Can you help please? Thank you

I am deeply embarrassed, I did not use the NEW for some reason (my fault) I assumed that the plugin shows up when I enable it.

Thank you Jerome