Adding Ciphers to Server 2012 R2

I need to add the following Ciphers to my server:

TLS_DHE_RSA_WITH_AES_128_GCM_SHA256

TLS_DHE_RSA_WITH_AES_256_GCM_SHA384

I found the following article: https://docs.microsoft.com/en-us/windows-server/security/tls/manage-tls

However, it's not too clear to me. The list I get from the "SSL Cipher Suites" field contains 39+ Ciphers and is A LOT longer than the allowed 1023 characters. While in actuality when I test my explorer11 browser against ssllabs I get only 16.