Hello, I am fairly new to Unreal Engine and in particular animating with sequencer. I have a player character with a skeletal mesh that has a weapon socket on both the right and left hand. The right hand socket is used to actually socket the weapon, and the left hand socket is used to get a default offset from the hand_l bone.
I am having the problem where I would like to make animations using sequencer and my control rig. However, my current control rig IK setup relies on the player having a weapon equipped in order to get access to the weapons left hand grip socket, so that I can use IK to move the left hand into position. This does not work in sequencer as there is no player character to have a weapon equipped, and so there is nothing for the control rig to reference.
My question then is how can I make my characters left hand stay connected to the left hand grip socket on my weapon with the same offset that it would have during runtime with my normal IK? If there is no good way with my current setup, then what is the usual way that this is done for two handed melee weapons?
In this image I have my first person arms skeletal mesh with my control rig, sword static mesh, and just a basic viewing camera so I can see what keyframes look like from the players perspective. The important parts of my control rig are that I have one position control, and one rotator control for each hand. This is to get around gimbal locking issues with using one euler transform control per hand. I have heard of constraints and know that they reparent an object to a socket or bone on another. This is very close to what I want, but the problem is that I need the left hand to be offset so that the weapons hilt doesnt clip through the players hand. If I just reparented the left hand controls to the swords left hand grip socket then the swords hilt would spear through the players wrist. I already have a weapon socket on the left hand which defines the correct positional and rotational offset from the hand_l bone, but this socket cant be directly connected to the weapons left hand grip socket, so if there is some way to include this offset within sequence then please let me know.
Thank you in advance for any advice or knowledge on this.

