Custom Soundscapes: Changing audible range of positions

[Litronom]

The case is the following:

I've created a custom soundscape together with positions, set up in the script.
The positions need to stay synced to the main position, which plays overall. But the positions reset, when too far aways.
Is it by any means possible to increase the range of those positions?
I've already tried messing with attenuation, but this only changes the fading distance.

Thanks in advance!