Can I set multiple 'options' with a single `:set` command spread over multiple lines?

Question

Is there any way to set options typed on multiple lines with a single :set command?

Here is a part of my vimrc:

se nu
se sm
se hls

And as you see, I have se on every line in which I set an option. I know that I can set the all options in one line with a single se but How can I set them with one se but with the options themselves specified on multiple lines.

e.g. I'd like to write something like:

se nu,
sm,
hls,

Answer 1

I'd personally recommend against doing so, but you can use Vim's "line continuation" feature for this:

set number
\ showmatch
\ hlsearch

This will be interpreted by Vim as if the contents of the lines after the backslashes were written at the end of the previous line:

set number showmatch hlsearch

Note that whitespace before the backslash is ignored:

set number
  \ showmatch
  \ hlsearch

See :help line-continuation for more details.

ino and cnorea are the short forms of the inoremap and cnoreabbrev commands. It is not possible to merge multiple map/abbreviation commands into a single command in this way: this only works with :set because that command already allows you to set multiple options with a single command.