I there a way to make one entry for an expense that is associated with two or more payment types?
Or, if you want to have an expense paid out of two separate Accounts - like some from your Checking 1 account and the balance paid out of your Checking 2 account, then using a $30 expense to be split evenly between the two accounts, in Checking 1 you'd enter the amount to be paid out of that account ($15), create a split, use whatever expense Category you want to use for the FULL expense entered as a positive number, then on the second line out of of the split show a transfer from Checking 2 for the balance as a negatove red number:
EDITED for reversing colors and signs in original post.
Do you mean like creating a Split transaction for a credit card charge where you purchased clothing and also want/need to track State Sales Tax separately?
Yes, if I understand the question. Do you mean something like where you pay for an expense partially with a credit card for example and partially with cash? If so what I would do is enter it in the credit card account with the amount being what was charged to the credit card. Then the category would be split to whatever expense you wish and cash.
As an example, say you go to a restaurant and pay $50 with a credit card and leave a $10 tip. The entry would be a $50 charge on the credit card split as Dining $60 and [Cash] $10 credit.
You can do the same with other payment types as well.