What is available in your EEGLAB file are 1s-long events. If you try to import them directly into Brainstorm, it would create 1s epochs, regardless of the "Epoch time" option you set in the input parameters.
To be able to import longer epochs, you need to:
- Link the files to the Brainstorm database (Menu "Review raw file")
- Convert the events to simple events (from the Process1 tab or the Record tab)
- Import the epochs from this modified file.
My guess is that you are trying to import your epochs from the .set file instead of the modified "Link to raw file" available in the Brainstorm database. This is what the first screen capture your posted show: if you want to import epochs from files already available in the database, the option "Files to import" in the process options should be empty (not set to the EEGLAB .set file...)