When starting an order , the selected user/operator should be auto-sign in

**Is your feature request related to a problem? Please describe.**
Currently when you want to begin/start an order, if you select a user/operator that is not signed in, you get an exception. 

**Describe the solution you'd like**
A better alternative would be to auto-sign in the operator selected before starting the operation.

**Describe alternatives you've considered**


**Additional context**

