Drill down and bookmark

Say I have population data in 2015 and 2020 of all the countries in the world.

Now I build my bar chart which compares population in 2020 Vs Population in 2015.

Since I want to do dive in more info , I created hierarchy such that continent, country and then cities are 3 levels. If user click drill down and select one contienent, it drilled to all countries in that continent and compare population of 2020 Vs 2015 in these countries.

Similarly if a user click any country, it drilled down to all cities in this country and compare the population of 2015 vs 2020.

 So Continent ---> Country ---> Cities are 3 levels

Now until now is pretty standard,

what I want that if a user wants to go next level say from continent to country, a new set of visual or table displays. Similarly if user click to drill down to next level of cities, the old visuals hides and new set of visual displays.

How can I do this ?? Please help as I totally stuck here and I am pretty new to PBI with no one arround me who has expertise in this area