Select objects with Object select

Select Select area > Object select  .

Draw a bounding box around the object you’d like to select.

Select the more options   menu and choose from the following as needed:

• Load mask into selection: Add your layer's existing mask to the selection you're creating.
• Select all: Select all content in the active layer.
• Sample all layers: Select multiple layers to apply changes to. 
• Invert selection: Invert the selection so that the deselected area becomes the selection.
• Clear selection: Clear the selection.

Once the selection looks good, select the checkmark  .