And everything turned out to be very simple!
Having read in the browser the HTML header and the referrer in it, I found out what I needed.
To the standard link /administrator/index.php?option=com_osproperty&task=properties_list you need to write
Code:
&open_search_from=0&keyword=&limit=20&agent_type=-1&company_id=&agent_id=&category_id=&pro_type=&country_id=194&state_id=&nbed=&nbath=&nrooms=&state=&state_approval=&request_to_approval=&isfeature=&properties_post=&limitstart=20&option=com_osproperty&task=properties_list&boxchecked=0&filter_order=a.id+desc&filter_order_Dir=
In block &limitstart=20, you need to write the number of the desired page, which is calculated by the
formula = (page number * number of objects on the page) - number of objects on the page
for example 6*20-20 = 100 &limitstart=100
