It would seem as if with Mendix 7.3 the browser context menu loads when right clicking on a column. Settings specified:
Columns - Flex Header - Yes
Columns - Responsive columns - No
Settings - Grid name - grid name value
Settings - other fields - empty
Paging - Hide unused paging - no
Paging - No paging First last - 4
Paging - Move paging - yes
Paging - Paging position - bottom
Toolbar - Hide unusable buttons - no
Empty table - default values on all fields
Row - default values on all fields
Inline buttons - default values
Common - default values

It would seem as if with Mendix 7.3 the browser context menu loads when right clicking on a column. Settings specified:
Columns - Flex Header - Yes
Columns - Responsive columns - No
Settings - Grid name - grid name value
Settings - other fields - empty
Paging - Hide unused paging - no
Paging - No paging First last - 4
Paging - Move paging - yes
Paging - Paging position - bottom
Toolbar - Hide unusable buttons - no
Empty table - default values on all fields
Row - default values on all fields
Inline buttons - default values
Common - default values