[WD] How to create a marina map

Hello to all

This below is an image representing the Porto Cervo Marina map.



I would like to create a designer to recognize each single boat place using an hotspot that must contains the boat place ID and other useful information about the boat ID and/or customer ID who rented the boat place in a given date.

Surfing the examples in Windev, i found a useful tool (WD Graphic Objects) that could resolve my needed.
The main problem is that some based functions are not present, like zoom, rotate and object property. I admit i'm not so confident with OOP has the tool is developed, so i have some difficulties to add by myself the missing features.

Any idea on how to start developing an application like that or on how to improve the WD Graphic Object tool?

Thanks in advance
Gianni