[TYPO3-english] extbase scheduler task

[Domi]

Hello,

I wrote command controller task which has some variables. Now I want to 
show a textarea field instead of a textinput field.

Here my function:

class CrawlerCommandController extends CommandController {

/**
  *
  * @param bool $clearAllCaches
  * @param string $urls
  */
public function crawlXmlCommand($clearAllCaches = FALSE, $urls = '') {

(...)

I would like to show $urls in scheduler as a textarea field rather than 
input, whats the recommended way of doing this?

Thanks

Dominic