Automatic selecting of nested layers

[BelindaBradfield]

Layer List Widget 

We have an issue at the moment where we sometimes have 2 or 3 levels of folders in the list and a user of the map has to tick on all levels to make the layer visible on the map instead of just ticking on the layer required and then it automatically turns on all levels above.

Would be good if automatic selecting of parent layers when sub layers selected was available in the layer list.