In reply to cgales:
It's just an example. I may want to switch off any component when needed.
The circumstance I was facing is that, at the very begining I need some illegal stimulus feeding the dut, and after a while, I reset the dut, and finally I feed some new legal trans.
In the first phase, I need to switch off the scoreboard, or monitors whatever, because I dont care about the errors or any stucks there. I'll reset it anyway.
I turn on the checking after I reset and restart my new legal trans.
I know my approach is awkward so I hope you guys could offer me better solutions.