Selection Modes
There are five different selection modes available:
Exclusive
Selection: The new selection replaces all selections made before.
OR
Selection: The new selection is added to all selections made
before. Available by holding SHIFT-key.
AND
Selection: The new selection is combined with previous selections with AND
operator
XOR
Selection: The new selection is combined with previous selections with XOR
operator
DEL
Selection: The new selection is deleted from previous selections
Only one selection mode can be active at a time!