If i raised arm of the character and than i go into bones edit mode (not mesh edit mode) then i no longer can see this arm raised so its in rest position but i need to see it in pose position but in Bones Edit mode there is not possible to go to modifiers tab and click Display modifier in Edit mode option of the armature modofier. So how can i do that?
perhaps if you told us what it’s your trying to do…
I can’t really imagine a reason to need to see poses in bone edit mode…
Copy it, leave the copy in pose mode. Does that work?