RIBBONCONTEXTSELLIM
Limits the number of selected entities that may be tracked by property controls on the ribbon and toolbars. If the number of selected entities exceeds the limit, the controls on the ribbon and toolbars show the default property.
Reducing the limit of entities that can be selected and changed at one time can improve performance when selecting a large number of entities. When set to 0, the limit is turned off and selecting a large number of entities may be slower.
Note that the RIBBONCONTEXTSELLIM system variable doesn't affect the Properties pane, which is controlled by the PROPOBJLIMIT system variable.
Type: Integer
Saved: In the registry
Range: 0-32767
Default: 2500