Hi Daniel,
The issue here is that your events are extended (thus the [ext] in their name). As such when importing, the epoch values are ignored (-1000-2000ms) and the duration of the events is used, which I assume is 2000ms.
Solution
Change your events from extended to simple (point) events.
- Open your raw file, then in the Event section of the Recording tab, select your Event groups
- Go to the menu, Events > Convert to simple event
- Here, you may want to select Start. So the simple event will be located at the beginning of the extended event, i.e, at time 0.
- Close the figure to save the changes in the Events
- Then proceed to import, and you should be able to set the Epoch time to -1000-2000ms or the desired values
Best,
Raymundo