Chart Marker Border

Hello,

My Excel Version is 2007.

I am trying to recreate a Chart programatically via VBA. I want to change the border type of single marker but cannot figure out how to do it. The Excel.Point object does not seem to have properties to change the Marker Border style, even though I can do it manually in Excel.
I tried to record a macro which does it, but no code is being written. I can only guess that the libraries not yet support that feature, but is there any way to change the border of a single point (marker)?

Thank you so much!
Thomas