The thesaurus control is a list input control specific for linking thesterms to a Content item.
It replaces the duallist which was used in previous versions. The thesaurus control will be used automatically on thesaurus fields, unless a specific control has been specified using the cms:control ctfp.
Clicking the left button, a thesterms library subaction will be started, which lets the user choose and select the appropriate thesterms.
Clicking the right button erases the selection.
Removing individual thesterms can be done by clicking the cross at the right on the same line.