Tab: Checks the title of the menu if available. Note, this key may be changed.
Two fingers triple tap on Android.
F1: Information of the selected item if available.
Three fingers double tap on Android.
Control+F: Search.
Control+G: Go to line.
Control+C: Copies the focused menu item to the clipboard if available, either it is a direct reference or the actual menu item, depending on the menu item the program developer may have set.