[Zope] can multiple users access gadfly database simultaneously ?

Hi, Thanks for your response.I am sorry for the way of my writing. Sincerely to tell you ,by the word 'immediately' i meant request & not command.Anyhow hope you have forgiven me. May i know ,is there any way to solve my problem ?. Should i create a work space or should i lock the page(till one person completes).Are there any dtml tags tags for these purposes or we have to write o python module ?. Thanks, Bye, jacintha