As system, it should be possible to interface (obtain and modify) some custom fields related with associations between entities from a script

As system, it should be possible to interface (obtain and modify) some custom fields related with associations between entities, from a scriptrunner script.

This includes:

• Tests association with a Pre-Condition
• Tests associated with a Test Plan 
• Tests association with a Test Set 
• Tests association with a Test Execution 
• Pre-Condition association with a Test