How do You Copy, Cut, and Paste Items in Nodes?

@dustinormond wrote:

I am wondering how to copy, cut, and paste items in nodes rather than the nodes or links themselves. Essentially, I am looking to replace console.log("copy"); and console.log("cut"); in the code below. Then I would need to figure out how to paste them and am not sure where to begin here:

// finds all selected attributes or fields
function findAllSelectedFields() {
	var fields = [];
	for (var nit = fileDiagram.nodes; nit.next(); ) {
		var node = nit.value;
		var table = node.findObject("FIELDS");
		if (table) {
			for (var iit = table.elements; iit.next(); ) {
				var fieldPanel = iit.value;
				if (fieldPanel.background !== "transparent") fields.push(fieldPanel);
			}
		}
	}
	return fields;
}

// function to copy selected fields
function copyFields(fields) {
	console.log("copy");
}

// function to cut selected fields
function cutFields(fields) {
	console.log("cut");
}

// handles copying
fileDiagram.commandHandler.copySelection = function() {
	var fields = findAllSelectedFields();
	if (fields.length > 0) {  
		copyFields(fields);
	} else {
		x = 0;
		y = 0;
		go.CommandHandler.prototype.copySelection.call(fileDiagram.commandHandler);
	}
};

// handles cutting
fileDiagram.commandHandler.cutSelection = function() {
	var fields = findAllSelectedFields();
	if (fields.length > 0) {  
		cutFields(fields);
	} else {
		x = 0;
		y = 0;
		go.CommandHandler.prototype.cutSelection.call(fileDiagram.commandHandler);
	}
};

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