You can configure between 3 and 10 buttons and save them with your favorites. To change a button, right-click on the button and select the desired type of setting layer.
If you hold down the Alt/Option key, the opposite of the "Clip to Layer" function will be used, which you can set in settings #2.
If you hold down the Ctrl/Command key, the opposite of the "Inverted Mask" function will be used, which you can set in settings #2.
If you hold down both the Alt/Option key and the Ctrl/Command key, both functions will be reversed.
Switch to the settings, which you can also open by right-clicking on the button in the context menu.
The hidden buttons are not deleted, so you can show them again at any time as needed.
A right-click on the buttons shows you all available functions, so you don't have to remember the keyboard shortcuts.