How to disable checkbox in certain column Ember js?

May I know how can I disable the rest of the checkbox except for step 2,3 and 4? Those checkbox are link from the checkbox component. And i link the checkbox component into route at columns propertyName:"active". Below is a part of the route code.

export default Route.extend({
    model() {
        let results = {
            workflow: {
                columns: [
                    {
                        "propertyName": "step",
                        "title": "Step",
                        editable: false
                    },
                    {
                        "propertyName": "workflowName",
                        "title": "Workflow Name",
                    },
                    {
                        "propertyName": "preferredName",
                        "title": "Your Company Preferred Name",
                    },
                    {
                        "propertyName": "active",
                        "title": "Active",
                        component: "adk-workflow-select-row",
                        editable: false
                    },
                    {
                        title: "Edit",
                        component: "edit-row",
                        editable: false
                    }],
                rows: [
                    {
                        step: '0',
                        workflowName: 'New',
                        preferredName: '新',
                    },
                    {
                        step: '1',
                        workflowName: 'Budget Approval',
                        preferredName: '预算批准',
                    },
                    {
                        step: '2',
                        workflowName: 'Creative',
                        preferredName: '创作的',
                    },
                    {
                        step: '3',
                        workflowName: 'Visualize',
                        preferredName: '想象',
                    },
                    {
                        step: '4',
                        workflowName: 'Implementation',
                        preferredName: '履行',
                    },
                    {
                        step: '5',
                        workflowName: 'In Play',
                        preferredName: '活性',
                    },
                    {
                        step: '6',
                        workflowName: 'Completed',
                        preferredName: '已完成',
                    },
                    {
                        step: '7',
                        workflowName: 'Canceled',
                        preferredName: '取消',
                    },
                ]
            },

This is the adk-workflow-select-row which is the checkbox component. The code below is how i render the checkbox at. This enable all the checkbox. But i only need step 2,3 and 4 checkbox to be enable.