Tell us what you are trying to do?
I am trying to set up custom search, and wondering is it possible to set up search to search throug 5 or 10 different custom fields?
Is there any documentation that you are following?
I saw old tickets that this is not possible but they are quite old so I thought I ask.
You make a custom post type and add custom fields and/or taxonomies for size, shape, color, priority, availability, popularity and generate some posts with these fields or taxonomies.
You create a custom search View and insert filter controls for each of these fields.
Do I misunderstand what you are aiming to do? No reason why that wouldn't work.
I set just one consultant area of specialisation in one fild:
CF1: Children therapy
CF2: Famili therapy
CF3: Couple therapy
CF4: Hazards
CF5: Online therapy
OK, you want a View with filters for several custom fields and to use a single text filter control to provide the value for all of the filters.
That's not possible as described, no, each filter would need its own control.
But, if you add Relevanssi to your site you can create a text search View and in the settings for Relevanssi you would have it index all of the relevant custom fields.
So you have a View with a text search where not only the title and post content are included in the search, but your custom fields as well.
I think this is the closest to what you are aiming for.