Extend Payment method on onepagecheckout view and controller

Question

I have developed own payment plugin in nopCommerce 3.90 version.

I want to call OpcLoadStepAfterShippingMethod method from my own plugin's controller and also want to extend OpcPaymentMethods viewpage.

I have already extend default onepagecheckout view page and controller for that from my plugin.

Please give me solution!