Screens & the goal
Choosing screens happens inside a block. Select a prototype block in your study's sequence and its editor holds both halves of the decision: where a run begins, and what counts as done.
Where it starts
The Screens panel in the block shows every frame of your prototype as a thumbnail. Click one and press Set as start - a badge on the tile shows the current pick. Leave it alone and the run begins at the prototype's own entry frame.
A free-explore task has no goal to reach, so it only asks this one question; the panel says so rather than offering a second choice that would mean nothing.
What counts as done
The goal has a card of its own, under success criteria, rather than being a button among the thumbnails. It always states the current answer, and opening it takes over the preview column with big, searchable thumbnails - a prototype with forty near-identical screens is picked from by looking, which needs the room.
- Reach a specific screen. Any route counts, as long as they get there.
- Follow an exact path. Record the route yourself with Paths - its last screen is what they have to reach, so the goal can never disagree with the route that leads to it.
A task with no goal at all is still worth running: the session is watched and scored on time and hesitation, it simply has no pass or fail.
Managing the frames
- Select several at once. Drag across the grid to sweep a selection (Ctrl/Cmd-click toggles individual screens).
- Reorder by dragging. Drag a tile's ⠿ handle to change the screen order - the order applies everywhere the prototype appears.
- Delete what you don't need. Remove screens you never want tested - urTRACE warns you first exactly which tests and sessions depend on them, and cleans up everything (including the stored images) when you confirm.