customStatRowsInCol(colIndex) {
        if (colIndex < 0 || colIndex >= this.columns.length) {
            return [];
        }

        let col = this.columns[colIndex];
        let result = [];
        for (let row = 0; row < col.gates.length; row++) {
            if (col.gates[row] !== undefined &&
                    col.gates[row].customStatTexturesMaker !== undefined &&
                    this.gateAtLocIsDisabledReason(colIndex, row) === undefined) {
                result.push(row);
            }
        }
        return result;
    }
@param {!int} colIndex
@returns {!Array.<!int>}