Unit group with Price list item

Hello,

I have one specific requirement in product, unit group and price list item.

Assume there is Product "A". Its base unit is Hour = 1. 2nd unit is Day = 8* Hour. 3rd Unit Week = 40*Hour

I have created one price list and added product "A" as price list item with unit = Hour. and also defined prices as $100.

Now i have added this product "A" in opportunity with appropriate price list. The default unit is Hour flow into opportunity product. If i want to use unit group as Day in opportunity product, would it require to add another price list item in price list with unit = Day or is there any other provision ?

How would i utilize conversion rate of unit groups in price list item and transactions.

Thanks in advance

Regards

Rutul