How to use calculator functions like value(), cross(), or abCrossTwoWaves() for array-like signals?

Dear community

Suppose I have an instance with input signal vin and output signal vout. I want to measure the voltage of vin whenever vout crosses a certain threshold, e.g. 0.6V.

Case 1 - single event

For a single event, I can measure the crossover time with

cross(VT("/vout") 0.6 1 "rising" nil nil nil)

Then, I can extract the input voltage with

value(VT("/vin") cross(VT("/vout") 0.6 1 "rising" nil nil nil))

Case 2 - multi event

For multiple crossover events, the cross() function still works, i.e.

cross(VT("/vout") 0.6 1 "rising" t "time" nil)

but the extraction of the input voltage requires the abCrossTwoWaves function (can be downloaded from the Cadence homepage):

abCrossTwoWaves(VT("/vout") VT("/vin") 0.6 "rising")

Now suppose that I have 64 identical instances. vout becomes vout<63:0> and vin becomes vin<63:0>. Above's calculations cannot handle array-like inputs, except for cross() which works well as long as the threshold is the same for all signals.. What is the correct usage of the calculator for both cases mentioned above when I have arrays of signals?