You can select multiple layers and apply common operations at once. You can
click and drag the
selection area with your pointer to select layers inside that selection area
Alternatively, you can also press the
shift key and then click on multiple layers to select
To select a nested layer, you can
double click on the parent layer and then navigate through
nested layer at the next level by double clicking again.
To select the inner-most nested layer directly, you can press the
⌘ key and then select the
Through Layers & Components Panel
You can also select layers from the Layers & Components panel.
You can directly click on the layer name on the panel to select it.
To select multiple layers you can press the
⌘ key and select each layer one by one.
To select multiple layers at once, you can select a layer, press the
shift key and then select
the final layer. All the layers between the first and the last layer selected in the panel will be selected.