It would be unusual to set up payroll and say “pull 50% from this bank account and 50% from this other account”. I don’t know if any payroll processors support

It would be unusual to set up payroll and say “pull 50% from this bank account and 50% from this other account”. I don’t know if any payroll processors support that setup. Most of the time you just connect your checking or payroll sweep bank account then set it and forget it.