how am i able to assign a task for today to someone but still see it in my to do list for today
You would have to include :all: in your filters.
For example, to see all tasks due today regardless of their assignments, you can add and save a filter with this query:
:all: & today
how do you do this
To create a filter, please click on the 3-bar icon in the top-right corner to roll out the left panel. Here, select the "Filters" tab, click on "Add filter" at he bottom and you'll see an input box with 2 fields:
1. Name - where you can set any name you want for this filter.
2. Query - this is where you have to type :all: & today
You can then access this filter the same way you've added it, it will stay on the filters list.