Interactive Video

if i have added submit screen at the end of video in the interactive video content.. i want to disbale the submit screen until the user reach the end of video..

right now, even if i added the submit screen at the end of video, a user can click on it any time during the time line... which let thm submit any time during the video..

can any body help ?

I was wondering inf you woul dbe bale to add a feature to overlay objects and arrows on interactive videos? Sometimes what you want to do is point something out on a youtube video, or better stil, put a grpahic over the top of it. Can this be made possible?

I do like the essay question feature which forces users to type a free text asnwer which matches a list of pre-prepared answers (with a few wildcard characters to allow for poor spelling). Could this be added to the possible question types in and interactive video?