I've noticed, while modding the tech tree, that some settings are absolute whereas other settings are relative.
For instance, whatever you set LogisitcsAbility to 9, that is its actual value so it is absolute.
But when you set DiplomacyAbility to 10, that is its increased ability which it adds to the value already there.
The advantage of relative is you can have research from more than one path to increase that ability.
If I want more than one research path to help increase logistics or range it's nigh-on impossible unless there is a way to set relative values for these.
Is there?