Using maps without recording activity

navigation is an activity, i guess you can discard it after finishing - which will mean it wont be recorded.

gps position writing consumes more energy....

how are u going to get your location on the map, without using gps signal?
i mean yeah i can find myself on the map on watch,

but once u walk where u want to, how is watch going to know where are u going etc- without using gps?

Reading ur gps position is one thing. Writting ur gps position to memory is another thing.

I'm talking about recording an activity not gps use...

Sometimes I use the maps as a car nav and it's  very annoying to discard the activity every time.

Use the Navigate profile.  Select Navigate from the profile list.  The first screen that comes up is a list of navigation selections.  Select what you want to nav.  Select Go To/Do Course/etc.  The watch will start navigating.  Just don't press the Start/Stop button to record the activity.

Why not using the "Map" feature on the watch? Its the easiest way to use the map without recording an activity, therefore its name!

Yeah it's very unfortunate when you have every tools available on the watch (POI , full map capabilities, route type selection....) and still you can't use it properly 

You could, just don’t want to do this like Garmin build it.
It is not navigation device, it is sport watch with a lot of function, navigation including.
But main purpose of it is to track your activity not do navigation.
If you want to do navigation buy something what is designeted to do it.