In the “Your coworker” field the user can choose their colleagues from an EnumList of all possible employee email addresses taken from a sheet. Though, next time the user signs in, their individual last entry shall be visible as initial value. At the moment, my initial value only shows their very first entry with the expression:
To add to your lookup (or equivalent select expression), you need to add maxrow expression https://help.appsheet.com/en/articles/2357310-maxrow
to find the most latest (last) entry to pull the value from that row to set that as initial value.