User wants to submit the time entries of the current period to different people from Weekly Time Card.
When submitting time entries from Weekly Time Card, you have the option to select the rows (projects) whose time entries you want to submit for the selected period. However, you cannot split entries within the same period to submit to different recipients by day. If you want to submit some days to one person and other days to another, use the Time Entries screen instead. It gives you more control over the entries you want to select and submit. Check CORE Help Center for details.