Do feel like I've lost a lot of small things compared to the Leon.. :(

I know how you feel. Didn't realise how much my MK4 Golf had till I got this. I'm not knocking the Ibiza because it does have a lot going for it too but all the little thing you notice. You think things like washer fluid level warning would be standard on any car with exception to micras etc......
 
I agree, another annoyance is the lack of interior grab handles. I was in a 10 year old base model Fabia the other day and it had them all round, yet the Ibiza only has a single one on the passenger side.
 
The mk3 had grab handles all round, two rear reversing and fog lights, and two number plate bulbs (though you FR and Cupra guys have that luxury)

My fried just bought a 2008 corsa SXI and it has footwell lighting, and the buttons on the interior roof light are illuminated! I'm all about the little things, makes it feel more premium, though I did retrofit a W8 light which has made the Ibiza a little bit cooler at night ;)
 
2015 FR with factory bi-xenons has it. Believe I've seen it in the options when I've been scrolling though with vag com. You probably need the sensor installing & coding if possible. Bi-xenon also has a 4.5 liter bottle I think for the h/light washers, maybe this bottle has provision for the sensor.
 
2015 FR with factory bi-xenons has it. Believe I've seen it in the options when I've been scrolling though with vag com. You probably need the sensor installing & coding if possible. Bi-xenon also has a 4.5 liter bottle I think for the h/light washers, maybe this bottle has provision for the sensor.

Then i have bi-xenon without sensor?

I think we need this: 7M091937 water level switch