Je was op zoek naar: good luck with the examination (Engels - Javaans)

replace the selection with the layer mask
layers-action

intersect the layer mask with the current selection
layers-action

protect this tab from being dragged with the mouse pointer
dockable-action

merge this layer with the first visible layer below it
layers-action

do you want to replace it with the image you are saving?
tool options, layersdock

intersect the layer's alpha channel with the current selection
layers-action

none of the selected modes were compatible with the possible modes: %s
requested", "minimummaximum