On Threshold…
My views are broken into a grid of 16x24 which is 384 squares. Setting a threshold of 1 should exclude an object smaller than 3.8 squares. I don’t see that the threshold correlates to a percent of the view.
With a threshold set to 2 (should exclude an object smaller than 7 squares) - I am still recording on very small objects moving in the view. My cat will set off my basement camera to record every time. Or a rabbit (smaller than 1 square) still sets off another camera; same camera at nights will be activated by an insect which even up close is smaller than 1%.
Insects and tree shadows are the main issues I have at this time with false alarms.