Custom Danish FM23 Database

I have created a whole new rules for Denmark, albeit basic. But I have Levels 1-11 playable, plus 5 levels (12-16) for 2. teams with no promotions to the normal league structure. Reserve and under 19 leagues also.

I have added 4 cups, including the (extinct) supercup (I enjoy having a supercup) along with the main cup, and my 2 custom cups, one for lower league teams and one for the 2. team league structure. It would be cool to create a reserve and youth cup, but I don't really know how to do that (see screenshots) It seems in the basic rules, it doesn't find the teams when each division the teams are under 'reserve teams'.

I have tried to make it as close to the original system as possible, with a league split... There is however one slight difference. In real life, when the league splits (top/bottom 6) - Here is how it works pasted from Wikipedia:

- The qualifying playoff is split into two groups, with the teams that finished the regular season in 7th, 10th, 11th, and 14th in one group and those finishing 8th, 9th, 12th, and 13th in the other. Each group plays home-and-away within its group. The top two teams from each group then enter a knockout tournament, with each match over two legs. If the Danish Cup winner is among the top two finishers in either playoff group, it is withdrawn from the knockout playoff and its opponent automatically advances to the tournament final. The winner of that tournament faces the third-place (or fourth-place) team from the championship playoff in a one-off match, with the winner entering the Europa League in the first qualifying round.

The bottom two teams from each group then contest a relegation playoff with several steps, centered on a separate four-team knockout playoff, also consisting totally of two-legged matches:

The third-placed teams in each group play over two legs, with the winners remaining in the Superliga and the losers advancing to a playoff final against the third-place team from the 1st Division.
The bottom teams in each group play over two legs, with the winners advancing to a play-off final against the second-place team from the 1st Division, and the losers dropping to next season's 1st Division.
The winners of each play-off final play in the next season's Superliga. -

I guess this can be added if my database would be able to be converted to advanced rules, perhaps someone can help with this? Feel free to get in touch.