Open your exhibit in editing mode.
- Click on the Plugins dropdown at the top of the editing panel and select the "SIMILE Timeline" option.
- Enter a date into the "Default Date" field. This is the date that the timeline will automatically focus on when the exhibit starts. It is usually best to set the default date a little earlier than your first record.
- Have a look at the "Interval Unit" dropdown and choose the interval that works for you. (You can always change these settings later.)
- Drag the "Interval Pixels" input down to around 50. (This determines the width between the tick marks representing time units selected in the last step.)
- Finally, set the "Tape Height". I often use 25. This sets the vertical height of the “span” graphics used to represent duration events on the timeline.
- Click Save at the bottom.