problem description
The insert column in the right-click cell is always grayed out, no matter which cell it is, but insert row is OK.methods that have been tried
 set hotSettings 
 allowInsertColumn:true, 
 allowInsertRow:true, 
 / / maxRows: 22, 
 / / maxCols: 22, 
 contextMenu: true, 
official website demo
  
the effect you want to achieve
like insert Row, you can manipulate
in the cell.