element viewports

diagram
properties	content  complex
children	viewport
used by	element  AutoTRAX
attributes	Name   Type   Use   Default   Fixed   annotation activeTab xs:integer optional   0      documentation This is the index of the active view.
annotation	documentation A list of viewports. Each viewport contains view parameters for a view on a sheet.

attribute viewports/@activeTab

type	xs:integer
properties	isRef  0 default  0 use  optional
annotation	documentation This is the index of the active view.