title: $:/language/Help/setfield
description: Prepares external tiddlers for use

//Note that this command is experimental and may change or be replaced before being finalised//

Sets the specified field of a group of tiddlers to the result of wikifying a template tiddler with the `currentTiddler` variable set to the tiddler.

```
--setfield <filter> <fieldname> <templatetitle> <rendertype>
```

The parameters are:

* ''filter'' - filter identifying the tiddlers to be affected
* ''fieldname'' - the field to modify (defaults to "text")
* ''templatetitle'' - the tiddler to wikify into the specified field. If blank or missing then the specified field is deleted
* ''rendertype'' - the text type to render (defaults to "text/plain"; "text/html" can be used to include HTML tags)