iData 2 lets you go directly to a particular record number.
1. With a datafile open, select Go To Record Number... in the View menu. This will bring up the following dialog:
2. Enter a number in the range shown in the Go to record number: text field.
3. Click the Go button.
Clicking the record number on the datafile window (indicated by the red arrow, below) will also bring up the Go To Record Number dialog.