How to open opportunity product form directly when user want to add products

Hello,

When the user clicks the plus button on the opportunity form to add products,I need to open directly the opportunity product form and not the inline editing view.

I tried many things but that worked on the quote product grid but not on the opportunity product grid which is weird.

Some of what I have tried is the following:

• Created a new view and linked it to the opportunity product grid
• Ticked the checkbox in system settings that allow legacy rendering

Any ideas?

Thanks for your help .