ModifyAssemblyInfo Add new method to retain existing assemblyinfo data

I want to modify an existing AssemblyInfo using the CreateAssemblyInfo it deletes all other info and no option exist to retain the values also ParseAssemblyInfo result can not parse directly to AssemblyInfoSettings for esey use,

I think it would be better to add one more function to the aliases named ex
ModifyAssemblyInfo or EditAssemblyInfo wich take in the same call parameters as CreateAssemblyInfo but only modifies and keeps the info that is not modified ?