selected
dragging
It shows that the answer that was before that was edited (changed) so you don't think the preview to the answer is the person's.
all at the same time
It is for all intents and purposes impossible to stop a file from being copied. Once you have given another person access to a file, they can copy it as much as they like. You can only protect the contents of a Word document from being read. If it can be read, it can be copied.
Changed, altered, varied, diversified, edited, transformed,
It was not changed for Wreck It Ralph since it was created specifically for that movie, but it was however changed and edited for the Disney Paint the Night Parade.
The correct spelling of the word is edited (changed, or revised).
Small pieces of DNA that is edited out of the mRNA message before it is generated is a intron. It is removed by the RNA splicing.
Yes, you can select different objects in a chart and format and edit them. Having selected an item, right click and you can get a menu of items to choose from.
Live streaming
PDF (Portable Document Format) is designed not to be easily edited or changed. It can be read by Adobe Reader or edited by Adobe writer.
Live streaming of course. You can't edit it if it's live. Video On demand can be edited for content.