Reset your SpreadSheet in one mouse click. See the coding sample showing how you can add the appropriate buttons to the toolbar. Don't hesitate to use this piece of code in your projects.
webix.ready(function(){ webix.ui({ view:"spreadsheet", id:"ss", toolbar: "full", data:{ data:[ [3,2,"Webix"], [3,3,"SpreadSheet"] , ] }, subbar:{ view:"toolbar", css:"webix_ssheet_toolbar", elements:[ { view:"button", value:"reset to 5x10", width:240, click:function(){ $$("ss").config.columnCount = 5; $$("ss").config.rowCount = 10; $$("ss").reset(); }}, { view:"button", value:"reset to 10x20", inputWidth:240, click:function(){ $$("ss").config.columnCount = 10; $$("ss").config.rowCount = 20; $$("ss").reset(); }} ] } }); });