Applying Extra Charges to Individual Rooms

Hello, I have been waiting for a Wix Hotels update so I may a pply different charges to individual rooms , but it still hasn’t happened. I am hoping I can get some coding help so I may have that feature. Right now I see there are only two charge type options (mandatory and Optional) and they are universal to every room you offer. I would like to be able set one additional charge to one room and charge of a different value to another room. I would also prefer it be automatic - dependent on which room is chosen, rather than having the customer choose that option. Can anyone offer advice or suggest which video may be closest to what I am looking for? FYI: I have never coded before.

Thanks