Second one is, is there a way that i can have an “add” button that would automacatically add my items instead of me having (( Product_1, Product_2 = Total_1, Total_2))
Default logo on the invioce - Simply paste it into the template
is there a way that i can have an “add” button that would automacatically add my items instead of me having - So you need to get your data structure right. Looks like you need a Product table to be a sub-table of the Opportunity table.