Question Animating 3D characters : access animator properties in scene window ?

Hello,

I want to create a 3D animation using the animator property : here is an already existing animation from mixamo, which uses for example the : Animator.Right Hand, Animator.Root Q etc....


Which would mean I can then use that newly made animation on another character with a similar rig.
but I don't want to manually add each number for each keyframe. I want to animate this as all other object : select, start recording, move/rotate/scale, stop recording and it's over, how can I access this animator property through the scene view ? or idk but not through the Animation-> Add property window.

When moving a transform rig that corresponds to the correct "limb" in the scene :


it obviously works but doesn't use the animator property and this doesn't carry on to another character, does it ? Is there a way to convert this ? Do I need to animate on blender my 3D characters ? Any youtube tutorials on this ? Thanks in advance !