[Plugin: Custom Content Type Manager] How to hide/disable "Choose Image" button in image f

Hi,
When create a image upload there are three buttons created at that field: [Choose Image] [Remove All] [Upload].

My question is how to exclude the [Choose Image] for that field? Because I create a multi-author site, so if an author click on that button, he will see all the uploaded images in my site. That’s not I wanted, it doesn’t make sense to let other see the images and some of the images may have their copy right issues.

Also, I found that in the media uploader, there already have a media library tab there. It is pointless to have [choose image] included since the choose image content are same as in media library.

Any advise??

http://wordpress.org/extend/plugins/custom-content-type-manager/