Attachment in Cinematic Sequencer

Hi,
I am making a cinematic content with Cinematic Sequencer. I do have a character animation the character picks up a prop then drops it. I do have animation for the character, but I do have only static mesh for the prop.
So, I placed the character with animation track on a sequencer, then spawned the prop on the sequencer.
I could attach the prop to the character’s socket on hand, but I should set keys for location of the prop when it is not in the character’s hand.
The problem is when I attach the prop, the based location values are different between when the prop is attached and when it is not attached.

I should locate the prop as closest as i can to the location where the prop is at the previous frame and next frame of the attachment is on.

I know I can animate and export the prop and character together from a animation software,
But Is there way that I can get the location value based on world setting even it is attached to another actor in sequencer?like when I do it in Maya