The Bar Explorer instrument shows what the price route during the bar is. Its function is to make the sequence of order execution clearer. We normally open the Bar Explorer from the Journal by double clicking on a bar row. It is also accessible from the main Chart by double clicking on a bar.
The chart above shows that in bar No 1452:
For further reference we can see also the journal tables.
We see here that three orders ware cancelled (5204, 5205 and 5206) since they are out of the bar range.