Please read forum rules.
Japaneese speaking is not allowed.

Sorry it's not Japanese in Spanish. I do not speak English. I am placing these words through the translator.

My previous question is to see if you can help me configure a specific project in relation to changing only the days, that is, this project must count the working days from Monday to Sunday without rest days.

Hi,
Go to global parameters and set up days off or worked by week into the first tab.
We do not set different days of the week being planified by ressource on each project.
Calculation take into account several levers you set up to planify on days opended for whole projects.
It is a dynamic capacity planning ASAP.
Please RTFM.
さようなら ---> Sayonara.

Thanks Alainforma, but in the gantt of a specific project how I do so that it takes me every day of the week, and does not alter the rest of the projects.

You cannot specify a calendar per project.
You can only set one per resource :
- Set all days open.
- define a calendar A with no week-end (all days open)
- define a calendar B with week-end closed.
- for resources working on projects for full week, select calendar A
- for resources working on projects with week-ends, select calendar B