Product Type - Default on Opportunity

Summary: How to set the 'Type' as Product by default on a Revenue line in Opportunity?

Content (please ensure you mask any confidential information):

Hi,

I need to set the 'Type' column as Product by default when adding a revenue line item in Opportunity. How can this be done in Redwood?

Instead,
If we could hide the 'Product Group' option from the Type drop down,
that will also be a good option. We don't want the users to add a
Product Group as a revenue line item.

From the application composer, we've already updated the order in Product Type field, with Product as order 1 and Group as order 2.