Same animation for multiple idles

Hello, I have a animation issue.

Apologies that I am making a similar post to my previous one.

In the game bombline, there is a different animation for when you are idle with your gun, and when you aim down the sights. You may ask, why not just use one? Well let’s say in the normal idle, my arm is pointing forwards. In my aiming idle my arm is tilted 45 degrees. If I use the normal firing animation, it would either blend weirdly with the aim, or just override the 45 degree tilt.

For the firing animation, is it recommended to make another one for the Aim down sights idle, and one for normal idle?
Or is editing the motor6d better?

Are there any other methods? I was unable to find any.
Any feedback is appreciated, thank you for reading.