NVM I got it.
i used search feature in BAS for image events and it only showed 5 without 'get image data'. my bad
Thanks,
To wait while element will appear on page, use Wait While Element Exists action

To wait untill element disappear you need to use cutom waiter:
http://wiki.bablosoft.com/doku.php?id=how_to_wait_on_certain_event_on_page#custom_waiters