Override groups colour range by name

[BIMadmin]

Hi Nick,
No regardless, I have just tried different ways and noone works.
I have created a new topic related to this topic.

Override groups in view

hello all, these suppose to be a simple thing but I cannot manage to override override gropus in view. As you can see in the images attached I can override elements in view, red wall. But I cannot override entire groups, I mean all the elements within a group. Why??? [1][2] Many thanks in advance!!!

Thanks