There are a number of settings in a data group that only apply to outputs. These are shown under the section called “fDocs Settings”, which is only available if the purpose of the DSD includes fDocs.
In the template Designer, the values available may be split into different sections by giving each a “tab”. A data group’s data may be on its own tab, or might share a tab with other related data groups.
The tab “Variables” is set up automatically by the system (for some internal values and user entries). You may use any text but you must not enclose the text in square brackets 
In Context Only
When using the template Designer the user may opt to see and apply tags “out of context”, in other words, without first applying their containing data group to the template. By checking this option you can prevent this being the case for data fields in the data group. This is useful to apply stricter control where needed.
You may hide a data group from view when a DSD is first loaded into the Designer. Users can then make it visible if they wish from the Data Groups section under the Designer ribbon in Word.
When fDocs generates an output, it uses the list of tags included in a template to work out which data groups need to be executed. If a template does not include a field from a data group, and that data group is also not used as the parent for another group which is needed, then it is not executed.
Selecting this option forces fSeries to calculate the data group whenever the DSD is executed. This may be useful in the case of global placeholders, where a placeholder is dependent on a data group that is not used anywhere else.
Design As Top Level
Check this box if the data group is expected to return a single row only.
In the template Designer, fields in this type of data group can be referenced directly without placing their data group tag in the template. Fields in other data groups are usually referenced within a section defined by the data group.
This option is only relevant to top level data groups (i.e. those that have no parent).