I would love to see in Cubase “To File Boundaries” like Pro Tools has as well as “To File Start” and “To File End” which allows you to select an audio region and if it is trimmed will expand it until it hits another region on the same track. It would be nice if there was also an option to just overlap regions on the same clip with a command but the former is the most important.
I know of course you can do this by dragging the clip out on both ends. The benefit of this command is that you can select multiple regions at once and know that they have been expanded back out as far as they can go.