Thanks for the input. That helps. I was not able to click drag (with the arrow) from source audio track A1&A2 to A3 & A4 audio tracks on the record side so that they “line” up. I may have found the answer.
I have created some audio tracks as stereo and others as mono. I deleted all audio tracks except 1 & 2 and re-created just A3 & A4 as mono only. Now I can drag the clips between the tracks.
This seems odd that I can not move audio clips between stereo and mono tracks. Is this normal?