Need help to add a new bonus to a tech level.

[Bruno_Magno]

Hello.

I,m trying to add a new kind of bonus to the civil research three, but so far i was not able to make it work properly, without disabling others features.
The idea is to add a small interest in every complete civil tech trier - 1% of the treasury at end turn, for every civil tech complete trier - to all factions. So far, it worked but also disabled the natural trait(5% interest) os the easterns roman empire and the bonus of the others reserch civil triers.

Can anyone help to solve this problem?

Thanks

Here is the image of the file.

[Bruno_Magno]

I managed to make it work, thanks to Maganr vídeos.
https://www.youtube.com/watch?v=0tfn3CEq9ik

I will test it further before uploading it to Steam.