well, the idea was to give the advent a structure which they can build once per planet and increases research speed by 10% or something.
(possible background: psionic connection between planets / collective consciousness speeds up research)
im aware of the possibility to increase research rate via research, but thats not what i want to do 
my idea was to give the structure an ability/buff which does that, but i found no buff modifier which allowed it..
second idea was to give them a research subject which increases research speed in dependence to the number of colonized planets, but again, i found no way and i dont think this is possible.
basically, what i want to know is if its possible to increase research speed without research, not necessarily with a structure