Drillthrough at visual level?

Hello All,

I have a requirement to apply drillthrough at visual level and came across below two links:

https://community.powerbi.com/t5/Desktop/Drillthrough-only-on-one-visual/td-p/254115
https://community.powerbi.com/t5/Desktop/Disable-drillthrough-for-few-visuals/td-p/347182

I find the suggested method not working for me and also I am confused how a page when filtered
by the drillthough field can have more items. Taking Country as an example (in first link), if a page

is filtered to a particular country how we can have more countries with All(Country), resetting the
drillthough filter? In second example, how can a copy field Year have more item when the Year is
set to, for example, 2018 by the drill-though?

Hope you can shed some light on this.

Regards,
Prakash