How to hide media uploads by other users in the Media menu?

Simply put – how might I completely hide media files uploaded by any other users other then themselves? Id like to disable access to these links & files since they are a way for non-admin users to be able to access and edit a custom post type that is normally not visible to them otherwise in the backend of wordpress.

Uploading Multiple Attachments From Front-End With A Description

I am working on a WordPress site that has a custom front-end submission form for adding in a post of content type, ‘sketchpad’. The form has a section that allows you to upload multiple images with a description field which is going to be used as an alt tag. What is an easy way for me to upload multiple attachments with accompanying descriptions from the front-end?