When editing Routing Rules in Customization manager there's no text wrap for the MatchString field, which makes it hard to edit lengthier/more complex routing rules.
Right now the options are to either scroll through the long string to read it all (or find the place you need to edit), or copy the existing rule, paste it in a text editor, edit, and then paste it back into the Customization Manager.
It would be nice if you could see the rule/MatchString in its entirety and edit it without having to scroll through the string or leaving the application to use a text editor.