Instanced Foliage Placement via Weightmap

Hello!

I’ve generated a suitable weightmap that I would like to use to place basic foliage across my (quite large) terrain - painting by hand or using the fill tool are not suitable options as the first would simply take weeks, and the latter has no control over the density of placed foliage except globally; or does using a dummy layer info and the fill tool respect the weighting in that layer (it doesn’t seem to be the case)?

I’ve found quite a large number of threads asking about this feature, but no answers - I find it a little absurd that this wouldn’t be possible.

Cheers,

Luke