You can create or edit a Tag from any list of Tags in a Taglo application. A dialog will be displayed as shown in the below screenshot.
Setup step of Tag wizard
Name
A Tag name can be any non-blank text.
Type
Choose between Abstract and Concrete Tag types (see explanation here). This option may not be available in all Tag wizards, dependent on context (sometimes the Tag type will be pre-determined).
Optionally, you can enter a Short Name for your Tag. In some places, this name will be displayed instead of the full name. If left blank, the full name will always be displayed.
Relationships
Relationships step of Tag wizard
Is A, Relates To, and Is Same As relationships can be edited in the Relationships page of the dialog. There are no limits to the number of each relationship type that you select.
Remember, you can create new Tags directly from each of the Relationship steps, so you can create a whole hierarchy of Tags on the fly.