To Designate the Table as a Security Marking
You can designate only flat-to-screen table as a security marking. The table designated as security marking is denoted in the Model Tree and Detail Tree with a special icon 
.
.1. Select a table that is flat-to-screen. The Format tab opens.
2. On the Format tab, click 
Security Marking in the Format group. The table is designated as a security marking.
Security Marking in the Format group. The table is designated as a security marking. | You can toggle the Security Marking button to add or remove the security marking. |