I have 1 minute video clips when recording and when i press lock video button in 00:58 it seems it save only clip when i pressed the button. When something happend in 00:58 and i press lock button in 1:00 camera will save the clip after event becase camera started new clip 00:01. Good idea is to add option to save 3x video clips before / now (when button is pressed) / after.