A browser is called with the standard userexit iwf_brw_ent. It is usually passed a driving entity and a browser list in order to supply the data of the top level, e.g iwf_brw_ent MED-ARTICLE MED-ARTICLE-BRW. You can use the following additional modifiers. They control layout and behavior of the browser.
| Modifier | Explanation |
| /NAME | Sets the title of the tab. The entity name in the standard parameter string is the default value. |
| /BITMAP = filename.bmp | Sets an icon left of the title. |
| /LEVEL=level | Controls the maximum level when expanding nodes |
| /REFRESH=on|off | Refresh existing structure ("on") or reloads the complete structure ("off") |