Go to Menu > Settings > Shipping options and select "Meet-up".

• Choose the pick-up address of reference. It could be your home address, for example. This will be used to match you with buyers' search areas. Your default address is automatically selected but you can change the default by clicking on it. Pick another one of your listed addresses or add a new one.
• Once you're happy with your address of reference, just save your selection and you're set! 

To turn the Meet-up option off, deactivate it via Menu > Settings > Shipping options. 

Changing the pick-up address of reference

If you have a new address or you decide to offer the Meet-up option from somewhere else (from your work address instead of home, for example), then you'll have to deactivate and re-activate the option to access the address selection page. 

You can also check and modify the address of reference right after you list a new item.