Any way to check AdBlue?

I've just bought a C4P and been reading the forums about what to expect etc.
I've only just read up about the AdBlue stuff that gets topped up when a warning light comes on.
(mine is a 2014 1.6 C4P automatic)

Is there any way to check how much is in mine? or how long before the warning light may come on?
Like a hidden menu setting, such as the cheatcode menu (holding radio button for 5 seconds)


Are there any other things I should expect would need doing in addition to standard MOT and Services? I usually use independent garages, not dealers.