Firstly, as kaman mentioned, there is a switch in the upper right corner of the web page "By sequence" which switches off interface-pair grouping.
Apart from getting a quick overview (for instance, which policies use a specific security profile, or NAT) and being able to filter the complete policy table, you will not gain more "exactness". The interface-pair view displays the exact sequence in which packets are matched, just filtered by interface pairs.
In "by sequence" view, the policy ID does NOT determine the sequence of matches - it's only there to identify the policy.
Last hint: to display the policy ID in either view, click the header row and enable "ID". After applying this, you can drag the column to whereever you like it to be. I prefer the very first column.
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