Editing a fact category or adding a new one
Similar questions: How to change the
terminology used for fact categories? How do I add a fact category selected in
the Investigation section in Events module?
To edit or add fact categories user must have such
right in the set of rights of at least one or roles assigned to him in Roles
and rights section of General Settings. 
Within 
go to Events section and select 
tab. List of existing fact categories will
show number of facts linked to each category as well as number of Fact types
that exist within it:
Each category can be edited, by clicking on it. This opens
details where it can be renamed, its description can be changed, as well as it
can be activated or deactivated. Active category 
is the one under which Fact types can be
created and these fact types would be available to select in the reference list
during an Event investigation.
It is possible to delete a fact
category 
only when there are no facts or fact types
linked to it.
To create a new fact category
click on 
button and fill up the name and
description of the new category in the window that opens:
Once created, new category comes
deactivated by default, therefore, to make it available for selection in the
reference list when creating Fact types it is necessary to activate it.
Newly created fact category
becomes available within the tab 
and new types of facts can be created
under it by selecting in the list