Developer subscription for RHEL 6.9

Hello,

We are testing our development on RHEL 7.3 using the developer subscription, we need to test on 6.9 but we cant find some document or instruction on what options need to be selected when installing 6.9. Wealready tried some options but the subscription maganer cant find a suitable subscription for this.

Someone tried to use RHEL 6.9 with the developer subscription or know what options need to be selected? AFAIK RHEL 6.9 is covered with this subscription, right?

Thanks!