Adding text captions to imported video

I have imported a multi-slide synchronized video into my captivate project. I want to add text captions to the video and I have no problem doing this. My problem is I can't see where I am placing the text captions relevant to the video because when I pause the video on the timeline, it shows the first frame of the video, even though I paused it somewhere in the middle. This makes me have to guess where to place the text caption since I can't actually see the video frame of where the video is paused.

Your help is greatly appreciated!