Hi Maurik,
It seems that you wish users to only see their own created items
If so this is not on the List View (i.e. which fields to output), but more on the Search View (i.e. different results) where you need to apply the proper setup.
You should assign "Article Created By" (existing field from Folder: JOOMLA > Article > Publishing) to your Search Type > Search View.
Then for this field, use the following setup:
* Variation = Hidden
* Live = User + Configure: Property = id
Side note: about seb_table template, feel free to apply the column label directly on the column position, instead of using the field label, if needed.
Saba