+Combining revisions specification
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Revisions options can to some degree be combined, which makes it possible
+to say "show at most 20 commits from within the last month that changed
+files under the Documentation/ directory."
+
+ $ tig -- --since=1.month -n20 -- Documentation/
+
+Examining all repository references
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+In some cases, it can be useful to query changes across all references
+in a repository. An example is to ask "did any line of development in
+this repository change a particular file within the last week". This
+can be accomplished using:
+
+ $ tig -- --all --since=1.week -- Makefile
+