Allow expanding hidden code in MR diffs

I believe it would be really useful if I could be able to "expand" the hidden code in the MR diffs, just like you can do with Pull Requests on GitHub.

The problem with the current interface is that when you use the MR page to review code, you don't get enough context, just the lines where the change is happening. That is very often not enough, and it forces me to also use a text editor in parallel to have a look at the old code and understand where the change is happening.

This is less of a problem if you're very familiar with the code that is being modified, but if you only have a look at that code once in a while, a line number is definitely not enough to provide enough context :)

Is there any plan for this feature?