Settings - MetaWeblog API

Allow automatic summary

If enabled, blog post summary will be created automatically from the beginning of the blog post text, and will be as long as the value of the Summary length property. This is applied only when a post is created - when editing an existing post, the summary is not updated.

Summary length

Length of automatic blog post summary in characters.

Delete unused attachments

If enabled, all blog post attachments which are not used in post text or have not been uploaded via WLW (i.e. have been uploaded via Kentico user interface) will be deleted when an existing blog post is modified and then published from WLW.