As an editor I want a possibility to generate a summary into a text field from another, long text field. - a button/icon on one field to generate a summary from another field - not forced, only generate a summary if **a user presses a button** - configured in the CTD (see [related issue](https://github.com/SenseNet/sensenet/issues/1989)), see available CTD properties there - tooltip on the button: "Generate a short summary from [field]" - the target can be either a _shorttext_ or a _longtext_ field 