Sorry I thought when you said
because you have not assigned them to the default's template item view
you meant "manually adding the field in the template", that's why I answered "I added it to the code".
I've never used default templates, positions or drag'n'drop or whatsoever. I though it was just a helper for non developpers and really didn't know it has something to do with the system. My mistake.
It leaves me with a couple of questions :
I still don't get the point of this way of doing, ergonomically and technically speaking.
I mean you create a field, link it to a type, link the type to a template, link the template to a content, and finally link the content to a Joomla menu item. Shouldn't the system be aware by itself of the fields it is supposed to load (for an item view) ?
For an item view, what's the point in drag'n'dropping a lot of fields in a dummy position ? Can't the system parse item.php file in order to know what is is supposed to load ?
Sounds legit for a category view but not for a item view. When you say "In the item view the effect is very small", don't you mean "the effect is non-existent?"
Thanks anyway and sorry for the wasted time.