Hiding panels can be really useful during the design stage of your Document, as it gives you the option to view and test how a page looks without a certain element, without permanently deleting it. It helps you to make any adjustments to ensure that your design looks just right!
How to hide a panel
Select the 'Layers' palette found at the top right-hand of your page.
Select the eye icon to hide a panel.
Once done, the eye icon will be greyed out and the panel will be hidden on the page.
How to un-hide a panel
Select the 'Layers' palette found at the top right-hand of your page.
Select the greyed out eye icon
Once done, the panel will no longer be hidden and you will be able to see it on the page.
How to hide ALL panels in a group