Good day!
I'm using Pega 7.3.1. My goal is to create input with autocomplite and later on, splitting the address line (city, street, house, etc.). I created custom control and it works as I need. But now, I can not pass the value of variables (city, street, house, etc.) to my clipboard. I use the following method:

var City;
City = suggestion.data.city;
<% tools.findPage ("pyWorkPage"). getProperty ("City"). setValue ("ThisMustBeVariable"); %>

But it conveys a value that I myself will enter. I tried:

.setValue (". City");
.setValue (.City);
.setValue (.suggestion.data.city);

In general, I do not know. I read the forum and learned that the transfer from js to pega is done through activity and data transform. But I do not know how to do it.
Thanks to all who read and leave the advice.