Search Console - URL Parameters

Hi,

Im going to make some changes on Google Search Console URL Parameters. I watched a video by Google about this and I think I understand what I should do. But just to be careful, I thought I would seek advise and confirm first before modifying anything.

This is what I see now.


Question-01:

This is about parameter "itemkey".

I want G-Bot to index,
URL 01 - http://example.com/districts/colombo/
URL 02 - http://example.com/property/

I DON'T want G-Bot to index,
URL 03 - http://example.com/districts/colomb...tegory=&cities=&ad-requirement=&search=SEARCH
URL 04 - http://example.com/property/?itemkey=&sub-category=rooms

The reason I don't want URL 03 and URL 04 to index is because it just narrows down the overall results of URL 01 and 02. If you visit URL 01 and click on a category on left side, you can notice this yourself.

So my question is, if I choose "No URLs" setting for URLs 03-04, will that stop G-Bot from indexing URLs 01-02 too?


Question-02:
Let assume I made a mistake and some pages I want indexed is not indexing.
i) Where are the places I should monitor to notice?
ii) Will changing the settings back fix that?


Question-03:

In the screenshot I posted above, there is a parameter as "sub-category". Following are two example URLs for that.

URL 05 - http://example.com/cars-and-vehicles/?itemkey=&sub-category=motorbikes-and-scooters
URL 06 - http://example.com/cars-and-vehicles/?itemkey=&sub-category=vans

As you can see, they have the parameter "itemkey" too (like in URLs 03-04).
So if I choose "No URLs" for parameter "itemkey" like I said in question-01, does that mean G-Bot won't index URLs with parameter "sub-category" no matter what settings I choose for that?
(I read somewhere that No URLs setting override all other settings. I want to make sure)

Thanks a lot

Regards,
Harsha