PARENT_<InfoArea>_<PanelNo>

If you assign this type, the panel with the number given in <PanelNo> is displayed in a list. Ensure that the given panel exists in the linked info area's (i.e. the parent record's) Details control.

You can also specify the link if you do not want to use the default link, e.g. PARENT_<InfoArea>#<LINKID>_<PanelNo>.