Schedual K line 60 61

[RH57]

I am completing a Quebec Income tax form for my deceased mother.  In the section on the  Quebec Senior drug plan I cannot find anywhere to enter the number of months that my mother was not on the drug plan. The program defaults to the full year and overstates the tax payable. How can I add the number of months she was not on the plan on sched K lines 60 and 61.