show drivers in position

Good day, I failed to capture the driver who was assigned to a position in the table tc_position.

I added these lines in traccar/conf/traccar.xml

<entry key='processing.copyAttributes.enable'>true</entry>
<entry key='processing.copyAttributes'>driverUniqueId</entry>

help me

You need to add some code for seeing them on the markers.
Then recompile or use debug version

I don't think the question is about markers.

Thanks for answering, what I need is to know which driver was assigned in a range of dates. I know that with those two lines of code in the traccar.xml file, the driver starts to be saved in the position table in the attribute field.

My drawback is that it is not working ... besides that I need something else?