Hey there @Luiskar1207
First off welcome to Wave! Glad to hear you're starting up with our free accounting software. Sometimes it might take a day or two for us to respond as we have a large backlog of comments and questions to get through, so we appreciate your patience. I will ask however, I may be a little unclear as to what you're looking to accomplish here.
If you'd like to create a new sales tax you can do that in Setting > Sales taxes. This will generate in your Accounts Transactions report once you've begun applying this sales tax to transactions.
I'm a little unfamiliar with the other acronyms you've mentioned and what you're looking to achieve from our reports. If you could specify what it is you're hoping for I'd be happy to help out further! Thanks.