how to simple rebuild all aliases? (MODX REVO)

I was creating a lot of documents and sub-documents on the documents-tree. But on Frontend Page there are their frendly url based on IDs. How to simple update that aliases and rewrite them to based on pagetitle? Iwas trying to put to columns

strings generated form page-title, but there was errors while flushing the modx cache. Do you know some add-on or SQL-query that simply do that job?

Read this http://rtfm.modx.com/display/revolution20/Using+Friendly+URLs

What you're trying to do is enable friendly alias paths (FURL's). Super easy, just follow the directions above.

(undo whatever you did with "columns, alias, uri")