I need the ability to set part-time availability for a team member to specific projects, i.e. working Mon-Wed on Project A and Thu-Fri on Project B.
For each project and each team member you could set working days, that would solve this problem. I have a team member in high demand, between two projects an agreement was made for a 3/2 split for the week.
Both project scheduled in Smartsheet need to me updates continuously to retain the tasks in the agreed working days. If the availability could be set on the project for the team member, the list of tasks could flow without that constant manual intervention - setting non-working days for the project will not work, as other team members are available to work on the project all days in the week.