Mod coding help

In my SEV Lite I've condensed the tech trees.

How would i change the Ruins tech to only give bonuses to existing techs versus trying to give something thats not there any more or to something new I'm adding?

I've looked at what I think is the formula's, but unsure what the values mean.

A little insight on what all these mean would be most helpful!! i put the whole section below for reference. Either, I want all ruins to just bump the existing tech or give a new technology if easy to code.

From StellarAbilitiesTypes.txt:
Name := Normal Planet
Number Of Abilities := 9
Ability 1 Chance := 5
Ability 1 Type := Empire - Grant Random New Tech Levels
Ability 1 Description := There are ancient ruins on this planet from a long dead civilization.
Ability 1 Scope := Space Object
Ability 1 Range Formula := 0
Ability 1 Amount 1 Formula := 1
Ability 1 Amount 2 Formula := 0
Ability 2 Chance := 5
Ability 2 Type := Empire - Grant Random New Tech Levels
Ability 2 Description := There are buried alien cities on this planet that have long been deserted.
Ability 2 Scope := Space Object
Ability 2 Range Formula := 0
Ability 2 Amount 1 Formula := 2
Ability 2 Amount 2 Formula := 0
Ability 3 Chance := 5
Ability 3 Type := Empire - Grant Random New Tech Levels
Ability 3 Description := Sensors indicate some kind of advanced technological devices left on this planet.
Ability 3 Scope := Space Object
Ability 3 Range Formula := 0
Ability 3 Amount 1 Formula := 3
Ability 3 Amount 2 Formula := 0
Ability 4 Chance := 5
Ability 4 Type := Empire - Grant Unique Discovery
Ability 4 Description := We have detected advanced technology present on this planet.
Ability 4 Scope := Space Object
Ability 4 Range Formula := 0
Ability 4 Amount 1 Formula := 1
Ability 4 Amount 2 Formula := 0
Ability 5 Chance := 5
Ability 5 Type := Empire - Grant Unique Discovery
Ability 5 Description := We have detected advanced technology present on this planet.
Ability 5 Scope := Space Object
Ability 5 Range Formula := 0
Ability 5 Amount 1 Formula := 2
Ability 5 Amount 2 Formula := 0
Ability 6 Chance := 5
Ability 6 Type := Empire - Grant Unique Discovery
Ability 6 Description := We have detected advanced technology present on this planet.
Ability 6 Scope := Space Object
Ability 6 Range Formula := 0
Ability 6 Amount 1 Formula := 3
Ability 6 Amount 2 Formula := 0
Ability 7 Chance := 5
Ability 7 Type := Empire - Grant Unique Discovery
Ability 7 Description := We have detected advanced technology present on this planet.
Ability 7 Scope := Space Object
Ability 7 Range Formula := 0
Ability 7 Amount 1 Formula := 4
Ability 7 Amount 2 Formula := 0
Ability 8 Chance := 5
Ability 8 Type := Empire - Grant Unique Discovery
Ability 8 Description := We have detected advanced technology present on this planet.
Ability 8 Scope := Space Object
Ability 8 Range Formula := 0
Ability 8 Amount 1 Formula := 5
Ability 8 Amount 2 Formula := 0
Ability 9 Chance := 5
Ability 9 Type := Empire - Grant Unique Discovery
Ability 9 Description := We have detected advanced technology present on this planet.
Ability 9 Scope := Space Object
Ability 9 Range Formula := 0
Ability 9 Amount 1 Formula := 6
Ability 9 Amount 2 Formula := 0