In case you want to add a place to your guides that does not exist (you were not able to find the required place in the list of places) you can create it.

Before adding a new place, make sure to double-check whether it was not created already, by searching for it beforehand (not to create duplicates). To do so, go to Places in the Settings menu (you’ll find it under Navigator) and create your new place.

When creating a new place, all fields are required. Make sure to provide a nice description, price level, tags and a picture.
 
All places in the system are shared between all of the properties using Mews. Although, the places are visible, guides are not.