Please review the follow video tutorial titled "Premiere Elements: Arranging Clips on the Timeline using Modifier Keys"
Also, are you aware of the audio "nudging" opportunities
Hold down the Alt Key of the computer main keyboard and tap the right or left arrow key one tap at a time. That will give you a 1 frame per tap nudge. If you hold down the Shift+Alt keys and tap the right or left arrow key one tap at a time, that will give you a 5 frames per tap nudge.
How do you have your Edit Menu/Project Settings/General set for "Audio Display Format" - Samples or Milliseconds"?
Please let us know if any of the above targeted your question.
Keep the CTRL key pressed while you adjust your clip. This will not create any gaps in the timeline
While we are waiting for your follow up, I thought I would make this comment although it is part of the video tutorial to which I referred you earlier in this thread.
Often existing Timeline placed media get disturbed when you are adding another file to them, even to the extent of splits in audio tracks.
One way to avoid that is to hold down the computer Alt key as you are moving a file into place on the Timeline. I prefer to use the Alt key for this, others prefer the Ctrl key.
Thanks - I'm on a Mac and it is actually the Command (Apple) key that does this, not ALT or Control