qgis - 3D population density map

I'd like to make a 3D population density map about a country.

I've got all of the population data of the towns and villages etc. and I've got shp about these areas.

I'd like to make a map like this:

I tried to do this with QGIS ThreeJS plugin. This is the result:

I'd like to add state vector layer above the 3D layer. Is this possible with that plugin?

Can somebody tell me what tool could I use to do this?

Answer

Yes it is possible to add a vector layer. You need to load both and select them at the in the plugin menu.