how to enables the edit mode for the specified row in Datatable

Hello all,
I am performing calculation on datatable using onAfterEditStop event. I want to keep one row editable, other rows can only display the calculated values. I tried to solve by using editRow(), but it didn’t work. Please can anybody help me to solve this problem.

refer below snippet:
https://snippet.webix.com/vdvn57lm

try this

onBeforeEditStart: function(cell){
    let result = this.getItem(cell.row).Result;
    if(result != "B" && result != "E" && result != "F"){
        return false;
    }
}

In the above snippet. I want to enable edit mode for B row (2nd row).

@Vaishnavi
try to use onBeforeEditStart event

onBeforeEditStart: function(cell){
    if(this.getItem(cell.row).Result != "B"){
        return false;
    }
}

@intregal thanks for your quick reply. Please can you tell how enables the edit mode for 3 rows and keep other rows non editable. I have tried the above solution but it works for only 1 row.

please use below snippet, and I want to enable edit mode for 3 rows
https://snippet.webix.com/4h21jk56