Show 20 day time periods

Question:

I am looking at Milestones for a new project. The planning is done using normal calendar dates but the Gantt has to have a vertical line every twenty days so that it can show 20 day periods.

Answer:

20 day grid lines can be accomplished two ways.

Method 1:

Create a custom heading definition with dates every 20 days. You could then specify that vertical grids align with your custom heading dates. You would not have to show the heading itself. See:

More about custom date headings

Method 2:

Set up a narrow curtain that auto-repeats every 20 days. See: