Step 1
First Login to Your Administrator Account
Step 2
If applicable, pick your site from the Sites page or by selecting it from the drop down list at the top of the page (when available)

Step 3
From the Site Settings page, select the Page Display option and then click the blue link in the Status column for the page you want to show or hide

Step 4
In the window which pops-up, select the Status you want for the page, review any other applicable fields and save your changes

NOTE: Not all website layouts have a left navigation area. If your site does not have this, the option to Remove link from left menu, will have no effect.