<p>I want a workflow that, when an entry is created in List A, will generate one entry in List B for each entry in List C. Is this possible? If so, how?</p>

I propose:
```
```
numpy.resize(my_ar, (3,3)).transpose()
```
```
You can of course adapt the shape
```
(my_ar.shape[0],)*2
```
or whatever