If you are running 5.7 or higher, changing the attrib value is the same as changing the metric collection profile in the admin UI.
For 5.7 the "default" value collects all metrics from vCenter. The "All" value collects a subset and is the "Balanced Profile" (roughly 50% of the metrics are collected).
I have some more details in this blog post... I do not know if changing the setting in the custom UI will reflect in the Admin UI, I may have to test that out. For now, I'd just use the Admin UI for that.
http://www.storagegumbo.com/2013/06/vc-ops-how-to-edit-your-balanced.html