Here you select the start point for the webmap.
If the webmap should start from the current page where the webmap is located, you select this alternative.
If you want to show the whole web site you select the start page here.
If the content of the webmap should be governed by metadata you select the metadata definition here. It is only possible to select a metadata definition of the link type.
Check this box if the start page should be included in the webmap. If you select this option it will be placed furthest up in the webmap:
Type a custom name for the start page here. This implies you have selected the option "Show start page".