My video crossed 20 minutes. Selecting multiple elements using shift and control key is grading out the camera positions.
Moreover, Videoscribe has gone too much slow. if I click the item right now, it selects it after 3 seconds. My gaming laptop has i7 quad core CPU 2.8 GHz, 8 GB DDR4 RAM, so it is not a problem from the laptop, but from the software.
I'll turn this forum into a support ticket so we can take a closer look