I'd suggest the dropdown re-populate based on the server selected and be based o...

JohnTHaller on April 10, 2015 | parent | context | favorite | on: Mozilla SSL Configuration Generator

I'd suggest the dropdown re-populate based on the server selected and be based on the cutoffs you use for the different configurations it generates. So, if you select Apache, it'd give you something like 1.x, 2.1.0 - 2.2.x, 2.3.x, etc based on which versions share configurations.