Mirroring an arm or leg with deformer

Hi All, I was wondering if there is a way to mirror an object with deformer so I only have to create it once and I can mirror it.

Eg. Create Right leg and copy and mirror it for Left leg.
Create Right arm and copy and mirror it for Left Arm.
Then I only have to focus on doing one part at a time.

Is there a way to freeze transformation?

(Sorry, I’m from Maya background and I was wondering if this is possible)
It would really simplify rigging time.

Thanks.

It’s not recommended to do this, you will lose flexibility animating.

You can duplicate your arm and leg layers to have copies of each
but you should make new deformation chains for the copies.