colleen wice

i have 129 t5008's according to cra. i know i have to complete schedule 3 but i am combining all amounts and using only 1. they are all publicly traded shares and mutual fund units. on each of the t5008 there is an amount in boxes 16 box 20 and box 21. how do i show these amounts on the schedule 3. for 1 year of acquisition they are all 2021. but i dont understand what boxes 2-5 are.