A couple of comments.
Someday, you should learn how to use record takes to layers so that you can later using comping to make your final drum track. Then you don't have to mess with a whole set of new tracks. It works great.
In your scenario, you have multiple tracks for the first pass of drums.
Then you created all the tracks again to make a second pass of drums.
Do move a portion of the second set of tracks into the first tracks, you first duplicate completely all the drums tracks you are going to edit and then mute and hide those backup tracks in case you need to get back to them.
Then, in the first set of tracks, highlight all the tracks based on the range you want to replace them and delete.
Now highlight and copy the second set of tracks from that point on and paste them exactly where they need to start.
There are other tips to learn such as grouping each set of tracks to help you edit later. But for now, I strongly recommend you learn how to use track comping.