On the deceased spousal form how does the "receiving spouse" (who is deceased) claim split pension income. She was eligible to claim this for 9 months in 2018.

It is required that the deceased spousal return is done separately.  In the past they have always been done jointly.  By doing them separately, there is no prompt to allow the split pension income amount.  On the alive spousal return, the pension income was allocated to the spouse.  The T1032 form is filled for both spouses but it seems to require an "override" to complete. Not only for the split pension amount received but also for the calculation in the box "Marital Status Change" on page 2 of the T1032 form.  The deceased was still "married" on the date of death.