Autostacking is not useful now, just for cooking.
Changes:
- Different rows for life and mana (at mana you might want a lower percentage because they are rare)
- Checkboxes keep all fish (example at cat fish: If I want to make a stack with avg over 600, I set the percentage as needed, but I don't want to delete the other cat fish because I want to cook them to make prof up... so I check the checkbox keep all fish)
- Minimun tier dropdown (If I want to catch just from Trout and above - I select T4)

Sorry for my paint skills. Of course, maybe, is not complete, but its a start to have a decent useful autostack.
In this way you can have 2-4 stacks per tier and not all tiers ... as there is no space