I use this type of transactions very often and I think that there are some things that need to be improved:
It's now two years ago since the request for split transaction into expense and income was put forward and nothing has happended. Banktivity (former iBank) has had this for ages and therefore I will continue to use Banktivity or alternatives. Too bad, Moneywiz to a large extend seems like a nice app but obviously is lacking some basic functiomality available elsewhere
This feature will come in MoneyWiz 3.