How to get an array of properties of another NetCat section?

Question

PHP

Good afternoon.
There is a main page on which you need to display infoblocks from other sections, but on the condition that the section from which I am dragging has the "Show on main" checkbox checked.
The bottom line is that I don’t understand how to get an array of properties of these sections on the main page, in particular, my checkbox, so that, by condition, either output or not output.