The smart editor widget can copy features from one layer to another using select by rectangle or polygon or lasso (under General settings > Copy and Append features). This is great. BUT, the user has no control over which layer is copied. I am using the widget to copy from one polygon layer to another polygon layer. If the selector tool intersects several polygon layers, all intersected polys are selected. The user can de-select the polys they don't want, but it would be a lot easier if the 'non-required' layers could be made non-selectable within the widget settings.