I would like to override the standard /taxonomy/term/%
view for certain terms in a given vocabulary in two situations: one is for a given term, another is for all childs of a given term (so if and only if the current term has XXX has parent, the view must be triggered°.
When one of the condition above is met, then this view must be triggered, the standard view must be displayed otherwise.
What is the proper way to achieve this?
EDIT
Example: Standard taxonomy page orders teasers by published date and it is generally what I need except for all the children of the term "Regions" (Africa, Asia, Caribbean,...) where I need to order them by Country and provide exposed filters.
I don't want to create a view for each of those terms. I would like to create a view that is triggered only when the parent term is Regions. In all other cases, the standard /taxonomy/term/%
view must be rendered.