sam
Try to move the sidebar from SplitView to CanvasView. Here's the sample code:
const stack = NSStackView.stackViewWithViews('something link btns');
// Find the Canvas view.
const splitView = document.splitViewController().splitViewItems().objectAtIndex(1);
const canvasView = splitView.viewController().canvasContainerView();
canvasView.addSubview(stack);
// Auto layout
// ...
But, this can be covered by another plugin view with the same strategy.
