[Question]hexagon 2019

hello … I would like to ask some questions…
in unity 2019 I see that they added the hexagon tilemap…

I have created this tilemap for testing

but I would like to know how to get every hexagon and be able to set it to be 0.1.2.
I ask this because I want to try to learn to create or to rts game…

I ask this because I want to try to learn to create or to rts game

can help plz