I am building a Gantt chart for a project where there is intensive activity planned on particular days. Some of those activities have a duration of only a few minutes so I need to be able to 'zoom' the chart to make the visual representation useful.

I cannot see how to make the columns wider so that I can see the extensive detail. I have set the 'Zoom' function to 'Day' but this does not widen the columns enough. For example, activities with a duration of say 3 mins appear as thin slivers which makes it practically useless and not much point printing out. Any tips on this would be appreciated.