Hi,
I found that the adjoining sheets guide displayed different numbers of indexes. According to TM DPS, the adjoining sheets guide mainly displays nine sheets, with the selected index at the center.
However, I've got 4, 6, and 9 indexes as adjoining sheets guide after running the EPM to generate an automated TM product. The expected product is TM25.
For example, the product should have nine sheets like one below.

But, what I've got is like one below.
six sheets)

4 sheets)

I confirmed if indexes exist around the selected area, which has 4 or 6 adjoining sheets, and there are.
So, I wonder if the adjoining sheets guide is dynamically created depending on the location. If it is, how can I manually set it to create nine sheets regardless of the location? If not, what could be the reason?