Ability to manage K-1s is a significant requirement. Sorting is one essential part of what is needed. Also needed is the ability to see the entire list of K-1s from prior year and be able to select one at a time as they don't all arrive at same time. I have dozens of K-1s and it is a big job to manage them. This is a high priority need in my case. Also, there are other places where sorting is needed. For example, list of 1099-INT. Same reason, need to be able to efficiently manage all these sources.