This menu contains options related to the layout of a diagram. They only have to be checked or unchecked according to the needs.
Snap To Grid: this option is checked by default, and it allows you to move the entities only in certain ways, as if an imaginary grid was there, and the sanguine lines could be placed only on the grid. If unchecked, you can move the entities as you want, with no "grid restriction".
Highlight Selected Relations: if this option is checked, when you select one entity, the relations that this one has with other, immediately close, entities will be highlighted in blue.
Show Diagram Border: if this option is checked, you can see the border of the diagram (a grey line).
Show Sanguin Lines: if this option is unchecked, the lines connecting one entity to the other disappear.
Show Labels: if this option is unchecked, the labels (names for example) added to the individuals when creating the diagram disappear.
Show Kin Type Labels: if this option is unchecked, the kin type definitions next to the labels ("EfM" for example) disappear.
Show Id Labels: an Id is added when the same kin type definition is used for different entities, so that you are able to distinguish them; it is represented by a #-sign followed by a number. So, for example, if you have two male egos, one will be simply Em, and the other Em:#1. If this option is unchecked, you are not able to see Ids.
Show Date Labels: when you create individuals you can also enter, besides name and gender, a date of birth and of death. You may decide not to show such dates; if you want them hidden you have to leave this option unchecked.
Show Archive Links: this option is valid for the diagram type "Archive Data Linker" and for the Gedcom imports that have resources. In both cases, the entities that are placed into the diagram will carry a label of the type: "archive ref.: 1, 2, etc." (see figure below). Such label disappears if this option is unchecked.