Set duration milestone to 1 day

When I change my task to milestone, it sets the duration from 1 to 0 days. Can I change it back to be considered in the calculation of duration time.
Kind regards,

Milestones have zero duration. They are not real tasks which require some work. They symbolize an achievement or a point of time in a project. If you need some work at the milestone day, add it as a regular task.

Thank you very much for your answer!
I will now change it to a regular task to have it in the calculation of duration and put the little milestone marker in InDesign.
For my special case (architectual planning) it would have been helpful to have the option to change the look of the bar with duration 1 day, because we have many long periods vs. days of presentation (very short bars) which then don’t properly appear in the final plan.