To Create a Markup of a Clash

From the Clash Detection dialog Results tab, select the clash you want to mark up.
Do one of the following:

From the Results tab icon bar, click the Create Clash Markup tool.

or
From the Clash Detection toolbox, select the Create Clash Markup tool.
A placemark is positioned automatically at the location of the interfering objects.

The Status, Assigned To, Assigned By and Assigned On fields on the Results tab are automatically populated to show that this clash has a mark up and that it has been assigned for follow up.

The markup also displays in the top portion of the Markups dialog.
From the Clash Detection dialog Results tab, continue selecting all the clashes you want to mark up.
All markups will display in the Markups dialog for further review and follow up.