Updating Playoffs in ESPN

Hey guys - As my league's season has just wrapped up, we are in the process of voting on and making rule changes for the 2025 season. There are 2 changes that we want to make that I am not seeing as an option on the ESPN platform.

We want to make the following updates:

1. Move from a 6 team playoff with 2 byes to a 7 team playoff with 1 bye.

2. Have the 1 - 6 seeds be determined by the regular season records and then have the 7th seed be the team with the highest PF of the remaining teams yet to qualify.

I would love some advice on whether this is possible. Even if it isn't a pre-set option in ESPN, is it possible to manually update which team gets the 7th seed?

Appreciate the help!