How to Customize Your Wordpress Dashboard

Steps
1
Go into your #Wordpress blog and log into the
admin account. At the top left of your screen is
your 'Dashboard'. Click on it.
2
Click on the Screen Options.
This is at the upper
right hand part of the screen.
3
Decide which options you want to use.
What you
have to choose from will depend on the plugins
that are installed.
4
Choose the number of columns that you want.
You can choose from 1 - 4 columns.
5
Close Screen Options.
Once you have selected
what you want, click on Screen Options and it will
close back up.
6
Close unwanted tabs on your sidebar.
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.
7
Use the 'Screen Options' elsewhere.
Every
section of the sidebar, like Plugins, Media, Post, etc.
have the option to change what you see.

https://m.wikihow.com/Customize-Your-Wordpress-Dashboard