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You can create live action buttons with Mark points, click to button to add live action markers. At the opening window click to '+' button . And adjust "Name , Description , Type (Regular /Marker In /Marker Out ) , Width , Color " for live action button then click to "OK" .You can see an example for live action buttons at the following picturespictures.
For this example; after you add "Goal" button , if you click to Goal button at the time of encoding , it will be added as marker metadata which includes your live action button settings.
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You can create custom metadata fields through 'Custom Fields' button at the top right corner. Click 'Edit' to edit the default fields, or click '+' to add a new customized field of your own.
Please see Applications Settings/Metadata for more metadata options.
