[AND] next to the group name can be changed into an alternative display, by
pressing on this [AND]. It will then change into [OR]. This is a switch and
can be pressed as many times as you want. explanation: by default, everything in a lesson MUST be seen by
the user. This means that the sub-lessons of every group are grouped in an
'AND' relation. You can see this as an [AND] next to the group name. conclusion: Please also note that the 'OR' display changes the
hierarchy display of sub-lessons, by showing also the weights and labels of
these sublessons in front of each lesson name. You can change these - see
Editing lesson weights and labels.