Specifically for the integrations into external tools, it's not currently possible to map Bugs and Features to different external items, since they are the same type of item in the Aha schema. A suggested workaround is to create a separate integration instance for Bugs, but this is obviously very cumbersome.
1 possibility would be to create a separate type of item for Bugs, unique from Features.
Alternatively - and this would have to be done either way, really - would be to specify in the Integration itself a unique mapping for Bugs, separate from Features. This would negate the need for changing anything about the Bug/Feature item.
Please review https://big.ideas.aha.io/ideas/APP-I-5463 as well. This is asking for similar functionality.
Bugs and Support Tickets.