SCL is a labor of love by the MPLAB IDE Simulator team, it is not an official Microchip product. Customers are encouraged to use SCL, but are cautioned that SCL is an as-is product with no guarantees or warranties.
Further SCL is a complex language. Microchip has attempted to document it as well as possible. But we are sure we've got it wrong in a few places, and likely missed key features all together. The reader is encouraged to go to the forums for advanced help. There are many knowledgeable and helpful members. And many Microchip employees monitor the forums regularly.