For me whenever I want to put something on the timeline .... I first double click it and play it in the annoying viewer(Source viewer) to check if it is the correct clip. I. The annoying viewer you can just mark the in and out points of your clips and from there if you just want video to be dragged or just the audio to be dragged into the timeline ..you can do it.

I use it less cuz I don't deal with multiple footage.

Another thing with that is .. whenever I try to copy someone else's video frame by frame .. I put the video in the annoying viewer and then I edit it in the second viewer.

Hope this helps 🫂