RewriteRule on httpd.conf x all server

[webstyler]

I need to configure this

RewriteEngine on

AddType application/x-httpd-php .php .html

RewriteCond %{REQUEST_FILENAME}!-f
RewriteRule ^([^.]+)\.html$ constructor.php?name=$1 [QSA,L]
RewriteRule ^([^.]+)\.htm$ constructor.php?name=$1 [QSA,L]

But for more than 500 sites

Can I setting on httpd.conf? How?

txx