public void SetRefLayer() { if (_selectedKeymap == null || string.IsNullOrEmpty(SelectedRefLayer)) { return; } _selectedKeymap.Action.ReferenceLayer = SelectedRefLayer; _selectedKeymap.UpdateDisplayText(); var referenceLayer = _keymapLayers.First(k => k.LayerName == SelectedRefLayer); _selectedKeymap.Action.RefLayerNumber = referenceLayer.LayerNumber; }