if you feel more confident you can add both letters. They dont expect to see your daily plan while his stay in canada. few lines you can just brief what he will be doing during his stay.I dont mind sharing what i know.Thank you for taking time to answer the question,i have just one more Q ,
I am planning to write a cover letter,but am not sure if I should write the letter or my brother,or its okay if we do both ,my brother can write his reasons why he wants to visit ,and i can write the itinerary,what i have planed to do in those 2 weeks
All the Best.