I would like to set a probe in my testbench to monitor a signal inside of the unit under test. How can I make a hierarchical reference to it?
We have similar feature named "Signal Agent". Basically you use Aldec provided functions to map signals across hierarchical levels:
signal_agent (<source>, <destination>, <verbose>)
Refer to the Active-HDL documentation (under menu Help | Online Documentation) for more details on using signal_agent command.