that's the idea. Consider the following example

```
trials_run1 = [1, 2, 3, 4, 5]
trials_run2 = [1, 2, 3, 4, 5, 6]
trials_run3 = [1, 2, 3, 4]

trials_run_total = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
```

We could actually compute a range with the length of the concatenated events ...