+``o`` ``notmuch-tree-toggle-order``
+ |docstring::notmuch-tree-toggle-order|
+
+``l`` ``notmuch-tree-filter``
+ Filter or LIMIT the current search results based on an additional query string
+
+``t`` ``notmuch-tree-filter-by-tag``
+ Filter the current search results based on an additional tag
+
+
+``g`` ``=``