Yes, you can use set_linear_velocity instead of move. Works very similarly. Here's an example:
Kinematic:
if(Input.is_key_pressed(KEY_RIGHT)):
move(Vector3(1,0,0)*delta)
if(Input.is_key_pressed(KEY_LEFT)):
move(Vector3(-1,0,0)*delta)
RigidBody in Rigid mode:
set_linear_velocity(Vector3(0,0,0))
if(Input.is_key_pressed(KEY_RIGHT)):
set_linear_velocity(Vector3(1,0,0))
if(Input.is_key_pressed(KEY_LEFT)):
set_linear_velocity(Vector3(-1,0,0))