With this switch you can choose whether any mask group frame contents are to be displayed or not.
On principle, the contents of mask group frames in Calamus can
include all frame types and frame contents. Therefore it is not
possible to give concrete information about the speed of mask group
frame redraws on the screen. In addition it depends on the other
visible/invisible switch settings what or whether something is drawn
in mask group frames. However, as outputting masked objects generally
needs twice the calculation time, mask groups are drawn somewhat
slower than normal
group frames, for instance.
Therefore, in certain phases of creating a document it makes sense to hide the mask group frame contents and only work on the frames.
