Hi @Victor_Deveau, this is generally really not necessary (but of course there are many ways to do things)…
With Dorico you can obtain any desired layout, also very extreme, compressed ones: all is possible.
One of the many things that differentiate Dorico from the other notation softwares is that you can obtain the desired result using global options (set to extreme values, if desired), with only a handful of global settings (in the various Options Dialogues which you find in menu Library, like Layout Options, Engraving Options, Notation Options, etc…), instead of manually moving things around (which is very inefficient and time consuming).
The Dorico Workflow is non linear: it means you can decide at any moment to change things (changing a global option) and like magic your whole music looks as desired (and you can possibly tweak some minor things manually).
If I would think of a Dorico motto, it would be: “Think globally first and then locally”
You really don’t need to decide 100% how your layout or your setup will be, at the beginning. Instead you can decide it later the result that you want to obtain after your have written your music.
In particular It is suggested to first insert all your music, dynamics, lyrics, rehearsal marks, etc…, in Galley View (which is one of the three visualisation modes of Write mode). Galley view gives you the possibility to insert anything without bothering with the layout, or without the page jumping because of a system change while inputting and so on.
Once you have all input done, you can start with the layout, which, a I said, is mostly done with just a handful of Options settings (and when you find the options that suit your need, you can save them as default, so in the future you will have even less things to adjust). Dorico will work for you, based on those global Options that you choose.
Once you discover the possibilities that Dorico offers you will be blown out, trust me 
Please, study the suggested videos in the Dorico Resources page, read the suggested pages of the manual, starting with the Dorico Concepts, and when you need help, please feel free to ask anything here on the Forum: we will be very happy to help.
And remember that it is generally better to attach a Dorico file to your requests, so that we can guide you and answer easily to your questions. (For example, if you attach your recent Dorico file, with the spacing issue, we can give suggestions based on the context)
Finally (and sorry for my long reply…), here an important post for the forum usage:
and the Forum guide: