property menu animation

Hi,

I work under Unity 2018.1.6f1 Personal.

A cube is created and selected.

When I am in the animation window> property transform and right click on Position.x for example, I get this menu:
cf link image:

https://drive.google.com/file/d/1BDx0rrHKhT6U-YS-YYOTACUMSBw5TP_t/view?usp=sharing

and I do not know how to configure Unity to get this image:
cf link image 2:

https://drive.google.com/file/d/1JCPyaXZeXk7bdR2eesnKH1T_QSk02rPs/view?usp=sharing

Can you help me?


thank you