List of spaces to include in downstream searches. The search space is typically exported. This is useful for project spaces with component spaces. The Display Table Macro and Display List Macro support search spaces.

Use @all to refer to all spaces. Typically search spaces defining no constraints on the search space should not be exported (use space-local).

Authors may exclude spaces from being added to the search space. Use '!' to remove the space from the closure.

@all, !TESTSPACEA, !TESTSPACEB

Authors may use space labels to include or exclude a set of spaces attached to this label. Use the '#' to select spaces by a space label.

@all, !#test

#test, !TESTSPACEA

The token @self refers to the own space.