Put tasks into Calendar after my module generates the Calendar

Hi all,

I have some code that you will see in the attached that generates a calendar.

If you want to test it, the input box asks for a payrun:-
e.g.
33 = December 13
34 = January 14
35 = February 14 and so on......

What I want is to see if it would be possible to input the TASKS at the bottom into the relevant days?