Please help

Ok i know this is going to sound dumb but i have a couple questions that i can not seem to find on the site. So if anyone could help i could use it. 1. Does Reaper support video support (i do scoring to flim and need to run see the movie to write music to it. 2. I see pictures of the track being different colors, (now i am not talking about the audio or midi data, but the track it self) 3. Is there away to freeze the track. (i use a high volume of samples and in my instruments and need to free up resources.

for 1 its hard to say yes. yes on 2 and 3.

please help 

HOw do i freeze a track in Reaper how do i get video to show up so i can write music to it