Is your feature request related to a problem? Please describe.
I'd like to have two or more layers with a single legend, so that they can be shown / hidden together. Currently this cannot be done.
Describe the solution you'd like
A solution could be to show one legend for layers that have the same label.
Legend styling should be taken from the first layer
In order to not brake backwards compatibility the feature should be turned on with a config flag
Additional context
A common pattern when you want to make a line layer easily clickable, is to add an additional layer with opacity 0.01 and much bigger line-width. You don't want an extra legend for that layer and you'd want to toggle the two layers together
Is your feature request related to a problem? Please describe. I'd like to have two or more layers with a single legend, so that they can be shown / hidden together. Currently this cannot be done.
Describe the solution you'd like A solution could be to show one legend for layers that have the same label.
Describe alternatives you've considered I cosidered this: https://github.com/developmentseed/mapbox-gl-layers, but it doesn't seem to work
Additional context A common pattern when you want to make a line layer easily clickable, is to add an additional layer with opacity 0.01 and much bigger line-width. You don't want an extra legend for that layer and you'd want to toggle the two layers together