How to create 'Wait for condition'
To create a stage with simultaneous concordance among several users, do the following:
- In IWorkflowActionProvider, register an action to check condition.
 - Add a "WaitTimer" timer.
 - Add a cyclical Transition to the current Activity with the following parameters: Trigger Type: Timer, Trigger Timer: WaitTimer, Condition Type: Otherwise.
 - Add an outgoing Transition to a current Activity with the following parameters: Trigger Type: Auto, Condition Action: Action from step 1, Condition Result on PreExecution: True.
 
