Previewing(thumbnails) files in media browser inside aftereffects not supported
In PPro you can in AE you can't what is the meaning of this? the next s-t-u_p-id thing as we used to in adobe products.
Scotty Kunkel commented
It's so hard to sift through footage for motion graphics use in after effects. The best way is to have a finder window, find the clips you need, and then search for that clip in the project window. It's a huge pain that can be avoided if AE had a Scalable thumbnail view for footage and photos like Premiere.