A study may contain one or more sets of trials (or zero if it's a simple questionnaire). You can only create trials within a trial block.
The trials view panel contains a tab bar (Figure 1:1) containing three sub-views:
- Timeline: temporal view of the trial and editing of logical order, style and timing of each construct within the trial.
- Screen: spatial view of the visible trial constructs for editing screen layout and style.
- Logic: rule editor for applying logic to each trial.

Figure 1. Trials tab bar
Creating a new set of trials
Trials can be added to trial block. Click New item, select Trials
from the type list and select one of the following creation options:
New
: create a new set of trials.
Copy
: copy another trials set from the current study.
Import from library...
: import a trial set from the library.
Note: A
trial block can contain only one set of trials.