This command reads a class name from the minibuffer with completion and positions the cursor on the class in the class tree.
If the branch of the class tree containing the class searched for is currently collapsed, the class itself and all its base classes are recursively made visible. (See also Expanding and Collapsing a Tree.)
This function is also available from the tree buffer’s context menu.
Repeat the last search done with /. Each tree buffer has its own local copy of the regular expression last searched in it.