I just installed this program on my computer, and many of the options/icons in the Timeline Bar are grayed out and will not work. They are all active when I first open the program; but when I insert my video to edit it, many of the buttons “gray” out. Does anyone know why?
You need to select a range to enable editing icons or buttons.
Firstly, select a video/audio and define a range using the Playhead (2), the start marker (1) and end marker (3). The selected range is highlighted in light blue:
For more information, please take a look at this article: