By adding my points:
1. Will extend sap.ui.table class and add one more property called tabEnable.
If yes: under onBeforeRendering we will add
var oFocusInfo = oTargetCell.getFocusInfo();
oTargetCell.applyFocusInfo(oFocusInfo);
this code.
Finally trigger the render function.
throughout out your application you can access this functionality.
Regards,
Karthik A