When I look into my event | event overview I see that the title of the event has a very small column… resulting in a title of 6 lines
How can I make this column wider… and remove or resize other columsn (dates has about 25% of screen real estate)
Are you referring to the WordPress admin view of events? If so, you can click the “Screen Options” button at the very top and right of the screen (screenshot) and choose which columns to display. The rest will be hidden and provide more real estate for the ones that are displayed.