How to add location custom attributes

Hi
I carefully read the documentation.

I want to add 3 custom attributes to locations: phone, web and metro.

I first go to settings/general/activate attribtes for location: Yes
and 2 fields below under Location attributes:
#_LATT{Metro}
#_LATT{Telephone}
#_LATT{Site web}

This does not work.

Then I go to settings / formats / locations / format for single page location and add the following lines:
#_LATT{Metro}
#_LATT{Telephone}
#_LATT{Siteweb}

This also does not work.

The location form that appears on the page [events_form] is always the same, without my custom attributes fields.

https://wordpress.org/plugins/events-manager/