Stay tuned. Frustum culling (Camera clipping) is WIP and will be added before Corona 8 release.
There is Follow Spline spinner available for 1D spline scattering, do you mean that? Anyway, ideas there are recorded in our internal tracker (thank you). The thing is that ATM we are not focusing on 1D features as other missing features compared to other scatters are more needed.
Nice to hear, we will wait for all the features to be added!
As for spline scattering, personally, in my case, for large exterior projects I will most likely still use the forest pack, but for small everyday tasks, for example, curb stones or stitching on fabric, I would gladly use a faster and simpler tool like Chaos Scatter (performance is really great), ofc I remember about the follow spline option, but it seems to me that the instance orientation algorithm itself is different here, in any case I will conduct more tests for myself, and again thank you so much for the work done!