addCheckbox of ui.spreadsheet, Methods Webix Docs

adds a checkbox into a cell

void addCheckbox(object range);

range

objectan object that defines the start and end cells of the range to add checkboxes into

$$("ssheet").addCheckbox({
    start:{row:1, column:3}, 
    end:{row:3, column:3}
});

Details

The range object includes two properties:

start - (object) an object with the start cell of the range set as {row:id, column:id}
end - (object) an object with the end cell of the range set as {row:id, column:id}