Automation with Sub-items

I am trying to create an automation where if an items status changes, move it to another group AND add subitems. This automation does look possible through creating it custom, however I need 13 subitems added and it’s stopping me at 5. Is there a way around this or another way to accomplish?

I have also tried instead of moving to a group, creating an item in a new board and then an automation to add sub-items when a new item is created, but again the amount of subitems gets cut off.

Thank you!