How to Add fields in productvarients in 2.4

What are the step need to do if I will add additional fields in table productvariant,
that will affect in the ProductModel.

I want the fields that I add will affect in the _ProductBox.cshtml.

I try add the field name in ProductVariant.cs  domain/catalog
in the nop.web controllers under catalogcontroller.cs and ProductModel under catalog
but still the data will not show in the web.

please help me.  thanks in advance.