Gantt Chart Milestone Dates Markers

[#1]

Hello,

I have searched the web for this and read a few articles in this community about Gantt charts.  Mine works fine but now the customer wants to add a Delivery Date field as a triangle marker in the Gantt bar based on the date.  Below is a sample image of what they would like.  Any ideas?  I have tried combo charts and a few other steps that aren't working.  The Gantt works great based off the Project Start and Finish dates.  I need to add the marker for the Delivery Date but cant figure it out.

[#2]

Anybody?  Still can't figure this out

[#3 · Accepted solution]

I figured out a way to get this to work.  I cloned the chart, changed the expression so that my milestone date was used instead of the project dates, centered the alignment of the legend, changed the expression from bar to diamond, removed the reference line, removed the grid lines and then changed the transparency to 100% so it blends into the other chart it is on top of...