Port number can be changed using the -p parameter. For instance to listen on port 80:
./dradis-webapp -p 80
The interface can be changed using the -b parameter. To listen on ALL (dangerous!) interfaces do:
./dradis-webapp -b 0.0.0.0
Dradis CE supports the most popular scanning tools, check out the full list of integrations.
Dradis gives you control over which integrations are enabled or disabled. If the integration you're looking for isn't showing up, you'll need to Enable the integration