You could combine the position filter with a filter for the number of players in the hand. The 'number of players' filter is also in the Hand Details section.
For example:
Add filters for (position 5 and 6) and (number of players = 9) at the same time.
Add a similar filter but for positions 4 & 5 and 8 players.
You should now have two filters on the Current / Active Filters page. Select them both with control-click and then click 'OR' Selected at the bottom to combine them.
This post has an example of how to do this.