Yeebaagooon spy eye isn't needed anymore, because these are whole new objects with it's own models and textures. Placing multiple together really makes them brighter but I wish I don't have to do it for that. Maybe there's a code for that brightness level which can be changed.
Edit: I fixed it. In prt file I had to change opacity to 1(it was automatically set to 0.3). I may also add blinking effect like UI range indicators have :P
[This message has been edited by Nikson (edited 08-03-2022 @ 10:22 AM).]