Filipe, I will be able to help you.
Do you understand basic Dorico terminology like player, instrument, layout and such?
EDIT: Let’s assume you do. Here’s my way of having more flexibility regarding TAB and notation staves: You need to create another, a second guitar player that you set to display only, say, TAB. You do that in Layout Options. Then, once you have the music notated, you copy it to that new TAB staff below.
Now both notation and TAB are completely separate and you can choose freely what to display where. Does that help?
Cheers,
Benji