Is it possible to setup a ‘external facing’ proxy for use with the IFS B2b portal but also keep our current ‘internal’ URL for normal IFS use??

The reason why I ask is because run I run the installer (from the middleware) and come to ‘Web Server configuration’ stage, we can only have one Proxy URL setting.

Currently this is set to an internal URL but if I change it to the ‘external facing’ URL, our internal users will not be able to connect to this instancing using our internal URL.. The only URL that they could use is the ‘external facing’ which will push all users to the B2b portal.

Any help would be greatly appreciated!