At the top left of your screen is your 'Dashboard'. Click on it.;
, This is at the upper right hand part of the screen.
 What you have to choose from will depend on the plugins that are installed.
 You can choose from 1 - 4 columns.
 Once you have selected what you want, click on Screen Options and it will close back up.
 If you aren't using a particular part of the sidebar, you can close it by clicking on the down arrow at the right of it.
 Every section of the sidebar, like Plugins, Media, Post, etc. have the option to change what you see.
Go into your Wordpress blog and log into the admin account.
Click on the Screen Options.
Decide which options you want to use.
Choose the number of columns that you want.
Close Screen Options.
Close unwanted tabs on your sidebar.
Use the 'Screen Options' elsewhere.
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