The format used for dynamic data source is quite similar to that used in the
<galleries> node in the configuration file. To learn more about the supported formats, see
Supported Dynamic Data Formats in the
Using Dynamic Data section of the manual. Note that the
<galleries> wrapper node used in the Multiple Galleries Format does
not support any of the attributes of the main
<galleries> node in the configuration file; these settings must be set in the main XML configuration file. However, each
<gallery> node
does support all of the
<gallery> attributes detailed in the
<galleries> section reference.