You could use QlikView Internal Webserver for Accesspoint #1 and use IIS for Accesspoint #2
You will need to assign a different port number to IIS otherwise it won't work.
How to use IIS as Accespoint is explained in the Reference manual.
I'm curious... Why would you like this setup with 2 accesspoints?
Setting up 2 accesspoints won't do the trick. Both will show the same dashboards. You cannot limit what is seen on webserver level.
You can better make 2 folders on the server (e.g. Prod and Test).
By setting the correct permissions on the 2 folders you can give the correct visibility for a set of users.
I usally make two user/domain groups: QlikView Prod and QlikView Test.
I add these groups to the corresponding folder permissions. Make sure you delete inherritable rights and also the domain users account (otherwise it won't work).
Now you can add specific users to the correct groups. Depending on which groups a user belongs to, he/she will see the correct dashboards.
Don't know if this is what you are looking for. But maybe it helps.