WampServer

I want to work on some multiple wordpress sites on localhost. I don't know how to edit httpd-vhosts.conf from apache.
I've tried this:

# Virtual Hosts
#
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot "${INSTALL_DIR}/www/testsite1"
<Directory "${INSTALL_DIR}/www/testsite1">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
</VirtualHost>
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot "${INSTALL_DIR}/www/testsite2/"
<Directory "${INSTALL_DIR}/www/testsite2/">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local
</Directory>
</VirtualHost>

Hi,

Read The need for Virtual Host
and Wampserver 3 - Create or add a VirtualHost

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