Here's how to zoom in on a specific part of your video in Premiere Pro.
Step 1:
Find where you want the zoom to begin. Press Control + K to split the clip at that point.
Step 2:
Find where you want the zoom to end. Press Control + K again to split at that point.
Step 3:
Select the middle portion between your two split points.
Step 4:
Double-click the video in the Preview window to reveal adjustment points.
Step 5:
Drag the adjustment points to zoom in on your desired area.
Your video will now zoom into the selected portion, highlighting important details in your footage.