If you have several layers in your InDesign document, and wish to work with no visual distraction on only one layer, you can turn all the others off quickly by holding down the Option key and clicking the eye icon of the layer you wish to keep visible in the Layers panel. I’ve used this same tip in Photoshop for quite a while, and finally realized it worked in InDesign as well. If you make use of layers, it’s quite handy!