It's on the list for sure. There are some scripts to do this. One good example is Go To Timecode by AZ, though I no longer know where I got it. Most likely it's via ReaPack. One good aspect of Reapers View: Jump (go) to time window view is that you can copy the timecode easily. I often do this when looking for alternate takes in the ADR recording sessions I have open while I'm mixing&editing. There are scripts for that function too though. In all Reapers method is flexible but slow. Maybe the grandad method of double-clicking in to the transport time display should be used. I'm curious why that was not tried. This could be used on the selection time displays as well. Flexible. Fast.