Hi, (I could be wrong and not using GridForget correctly.) While converting my old Python ToDo app I needed the 'grid slaves' and 'grid forget' directives. I made Gridslave however I needed to fix GridForget to get it working. It's not the Window you need to pass but the widgets. tk.Row() and tk.Column() are a valid option for GridSlave(). ``` func (me *App) deleteTask(r int) { fmt.Println(me.inner_frame.GridSlaves()) tk.GridForget(me.inner_frame.GridSlaves(tk.Row(r))) } ``` **GridSlave:** ``` func (w *Window) GridSlaves(option ...Opt) []string { if option == nil { return parseList(evalErr(fmt.Sprintf("grid slaves %v", w))) } return parseList(evalErr(fmt.Sprintf("grid slaves %v %s", w, collect(option...)))) } ``` **GridForget:** ``` func GridForget(widget []string) { if len(widget) == 0 { return } evalErr(fmt.Sprintf("grid forget %s", strings.Join(widget, " "))) } ```